This Gen Z slang guide covers the most important internet vocabulary terms that have defined online communication in the 2020s. Whether you are a parent trying to understand your teenager, a professional navigating online content, or simply someone who wants to use the vocabulary correctly, this guide provides definitions, origins, and usage examples for every term. Consequently, after reading this Gen Z slang guide, you will navigate comment sections, memes, and social media conversations with genuine fluency.
Why This Gen Z Slang Guide Matters
Gen Z slang is not trivial — it reflects how an entire generation processes emotion, social dynamics, identity, and humor. Furthermore, many terms in this Gen Z slang guide carry cultural origins in AAVE, gaming communities, and specific subcultures that deserve to be understood properly rather than stripped of context. Additionally, using these terms incorrectly — or using them beyond the communities where they originated — can come across as trying too hard or, worse, appropriating vocabulary without understanding its roots.
Moreover, Gen Z slang spreads faster than any previous generation’s vocabulary, thanks to TikTok’s algorithm. Consequently, terms go from niche to global within weeks. Therefore, staying current requires a reliable reference — which is exactly what this guide provides.
Rizz
Rizz describes natural charm and the ability to attract others through confidence and effortless social skill. Furthermore, having “W rizz” means exceptional charisma, while “L rizz” means having none at all. The term was popularized by Twitch streamer Kai Cenat around 2022 and became one of the most widely adopted terms of 2023. Additionally, Oxford University Press named “rizz” its Word of the Year for 2023 — marking its formal entry into mainstream recognition. Consequently, rizz went from streaming vocabulary to dictionary entry in under eighteen months.
NPC
NPC stands for Non-Player Character — a gaming term for characters controlled by the computer rather than a human. Online, it describes someone who seems to lack independent thought, follows social scripts robotically, or responds to situations in predictable, automated ways. Furthermore, the NPC meme became a major TikTok format in 2023 when creators began performing NPC-like behaviors live for tips. Consequently, NPC now functions both as a descriptor for real behavior and as a specific content format.
Copium
Copium combines “cope” and “opium” to describe the mental gymnastics people use to rationalize a bad outcome rather than accepting reality. Furthermore, it originated in gaming communities on Twitch where fans of losing teams would post elaborate justifications for why their team would still win. Consequently, copium spread far beyond sports and gaming — it now describes any instance of someone refusing to accept an unfavorable truth. Therefore, you will find it used in political discussions, relationships, career contexts, and anywhere else people avoid hard realities.
Simpcoty
Simpcoty describes exaggerated, self-aware one-sided devotion in online relationships. Furthermore, it differs from plain simping by implying the person knows exactly what they are doing and acknowledges it with humor. Consequently, Simpcoty is typically self-applied rather than used as an external insult. It is especially prevalent in gaming, parasocial fandom, and social media relationship discussions. Therefore, it is one of the most nuanced terms in the Gen Z slang vocabulary because it combines behavioral critique with self-aware irony.
Delulu
Delulu is a shortened form of “delusional” — used to describe someone holding beliefs completely divorced from reality, especially about celebrities or romantic interests. Furthermore, delulu became particularly prominent in K-pop fan communities before spreading to general use. Additionally, the phrase “delulu is the solulu” — delusional is the solution — became a popular ironic self-help mantra. Consequently, delulu carries both critical and affectionate usage depending on context.
Ick
The ick describes a sudden, visceral loss of attraction triggered by a minor or embarrassing behavior from someone you previously found appealing. Furthermore, once the ick strikes, it is notoriously irreversible — the attraction rarely returns regardless of the severity of the trigger. Consequently, the ick became particularly prominent on TikTok’s relationship content community, where creators shared increasingly mundane triggers — from jogging in public to waving at friends — that had given them the ick. Therefore, ick content simultaneously captured a real emotional experience and satirized how trivial attraction thresholds can be.
Situationship
A situationship is a romantic arrangement without a clear label — somewhere between friendship and a committed relationship. Furthermore, situationships are defined by their ambiguity: both parties usually know more is happening than friendship, but neither has defined what exactly. Consequently, situationships became a dominant topic in Gen Z relationship content because they describe a pattern that previous generations experienced but lacked precise vocabulary for. Therefore, the word filled a genuine linguistic gap in relationship vocabulary.
Slay
Slay means to perform exceptionally or look incredible. Furthermore, it was borrowed from drag culture and LGBTQ+ communities where it had been in use for decades before entering mainstream Gen Z vocabulary. Consequently, slay functions as both a verb (“she slayed that presentation”) and a standalone exclamation of approval. Moreover, because of its origins in marginalized community vocabulary, slay carries cultural history worth acknowledging. Therefore, using it with awareness of that history is more respectful than treating it as a purely neutral internet word.
Based
Based describes someone who expresses their genuine opinions confidently without caring about social approval or what others think. Furthermore, it originated with rapper Lil B before being adopted by 4chan communities and eventually mainstream internet culture. Consequently, based has traveled from a very specific cultural origin through several distinct communities with different values before arriving in general use. Therefore, its meaning has shifted considerably along the way — from a personal philosophy to a general compliment for authentic, unapologetic behavior.
Brainrot
Brainrot describes the mental state of someone so saturated by internet content that their thinking, humor, and references are entirely shaped by memes and online culture. Furthermore, brainrot content — purposely nonsensical, deeply referential internet humor — became a genre in itself on TikTok. Consequently, describing something as brainrot is now both a diagnosis and a compliment, depending entirely on how it is delivered. Moreover, brainrot humor’s internal logic is completely impenetrable to people who do not consume the same content diet — which is part of its in-group appeal.
Era
Era describes a defined phase of someone’s life, aesthetic, or personality. Furthermore, the concept was popularized by Taylor Swift’s “Eras Tour” but quickly spread as a general Gen Z framework for describing personal phases: “gym era,” “academic era,” “flop era,” “healing era.” Consequently, framing life periods as eras gives people a way to describe personal change without committing to permanent identity claims. Therefore, it is one of the more psychologically sophisticated terms in this Gen Z slang guide — capturing how identity is experienced as fluid and sequential rather than fixed.
Explore definitions for all these terms and 50+ more in the Internet Slang Glossary. Read the full Simpcoty definition for the complete origin story, or take the Simp or Chad Quiz to identify your own archetype.
Frequently Asked Questions
What is a Gen Z slang guide?
A reference resource explaining internet vocabulary from Generation Z — terms like rizz, NPC, copium, Simpcoty, delulu — with definitions, origins, and usage examples.
What does rizz mean?
Natural charm and the ability to attract others through confidence and effortless social skill. Oxford Word of the Year 2023.
What does NPC mean in Gen Z slang?
Someone who appears to lack independent thought and responds to situations in predictable, automated ways without genuine self-direction.
What does copium mean?
Using mental gymnastics to rationalize a bad outcome rather than accepting reality. Started in gaming, now used universally.
How do I learn Gen Z slang quickly?
Use the Simpcoty Internet Slang Glossary for definitions with context, follow TikTok and Reddit communities where terms are used naturally, and check Know Your Meme for cultural origins.