The other day, I overheard my 18-year-old daughter chatting with her friends. Between bursts of laughter, she said someone had "mad rizz."

I paused mid-step. Rizz? Was that a person? A drink? A new app?

When I asked, she rolled her eyes in affectionate disbelief. "Dad, it means charisma," she explained. "Like, he's smooth. He's got game."

That moment was my initiation into the fascinating, fast-moving world of Gen Z language - a space where words mutate, meanings shift overnight, and entire conversations can sound like code to anyone born before the millennium. From "slay" to "delulu" and "main character energy", the slang of today's teens and twenty-somethings offers a snapshot of how a digital generation communicates, jokes, and defines itself.

So, what exactly is "rizz"?

"Rizz" - short for charisma - has become one of Gen Z's most popular slang words. It refers to someone's ability to charm or attract others, especially in a romantic context. If someone "has rizz," they've got an effortless confidence that draws people in.

The term is widely credited to YouTuber and Twitch streamer Kai Cenat, who helped popularise it around 2021. Since then, it's taken on a life of its own, spawning phrases like "unspoken rizz" (the kind of magnetism that doesn't even require words) and "W rizz" (a win in the flirting department).

If someone says, "He's got no rizz," it's not meant kindly - it's shorthand for awkwardness or a lack of social spark.

The speed of online speech

What makes Gen Z slang so distinctive isn't just its inventiveness, but its velocity. Thanks to social media platforms like TikTok, Snapchat, and X (formerly Twitter), a word can go viral globally within hours.

A phrase might begin as a throwaway joke in one video, then spiral into millions of uses across continents. The internet doesn't just spread language - it accelerates it. Where once it took years for slang to travel from youth subcultures into mainstream speech, it now takes days.

Even misspellings can become movements. "Yeet," for example, started as a dance move before evolving into a verb meaning to throw something with energy or abandon ("I yeeted my keys across the room").

A Gen Z Dictionary (for the rest of us)

Here's a quick guide to a few other Gen Z favourites:

Slay: To excel or look amazing. Originally from Black and queer culture, "slay" has become universal praise. "You slayed that presentation" means you nailed it.

Delulu: Short for "delusional," used affectionately for someone who's dreaming big - or maybe a bit unrealistically. "She's delulu if she thinks he noticed her" is teasing, not cruel.

It's giving: A way to describe the vibe of something. "It's giving boss energy" means confident and powerful; "it's giving broke student" means not so much.

No cap: Meaning "no lie" or "for real". It comes from African American Vernacular English (AAVE). "That film was amazing, no cap."

Main character energy: When someone acts like the star of their own story - confident, self-assured, sometimes a little dramatic.

Bet: A versatile word for agreement or challenge, like saying "okay" or "we'll see". "You think I can't do it? Bet."

These expressions may seem frivolous, but they're deeply rooted in creativity and cultural exchange. Many stem from Black and queer online communities before filtering into mainstream Gen Z use.

Why they speak this way

Every generation develops its own slang, but Gen Z's is uniquely performative. Social media isn't just where they chat - it's where they perform identity.

A caption, comment, or short video isn't simply communication; it's self-presentation. Saying "I slayed, ate, and left no crumbs" - meaning you did something perfectly - is part joke, part celebration, part internet theatre.

This constant interplay between humour, irony, and sincerity is key to understanding Gen Z speech. They use exaggeration as both comedy and coping mechanism, irony as both armour and art form.

A living, breathing language

Linguists love this stuff. Far from being the "death of English", Gen Z slang shows language doing what it's always done - adapting to culture and context.

As linguist Gretchen McCulloch, author of Because Internet, points out, "Online language evolves faster because it's written speech". Unlike formal writing, social media captures spontaneous, conversational English - and the result is evolution in real time.

Emojis, abbreviations, and tone indicators ("/j" for "joking," "/srs" for "serious") all show how young people are reshaping communication to fit the digital world's nuances.

Lost in translation? You're not alone

Older generations have always viewed youth slang with a mix of confusion and amusement. The 1960s had "groovy" and "dig it". The '90s had "phat" and "as if". Today's parents are simply grappling with "rizz" and "delulu."

But there's a twist: thanks to TikTok, the language gap is widening faster. By the time adults catch on, Gen Z has often moved on. As my daughter told me, "If you start saying it, dad, it's already over."

Fair enough.

More than words

Underneath the memes and buzzwords lies something more serious - a generation defining connection in a noisy, uncertain world. Their slang compresses emotion, irony, and humour into short, shareable bursts.

In a time when life unfolds online, these words create intimacy and belonging. To "slay" is to be celebrated. To have "rizz" is to be confident. To be a little "delulu" is to hope, even when reality says otherwise.

It's creativity as self-expression - and in its own way, poetry in motion.

So, if you find yourself overhearing conversations full of "rizz", "vibes", and "slay", don't despair. You don't need to decode every term. Just appreciate the inventiveness - and remember, you were once young enough to speak your own secret language too.

And if you still don't get it? Well, that's fine. As Gen Z might say, it's giving parent energy.