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Define Thirty Meaning

Thirty
A thirty pack of beers (thirty rack).

A thirty of natty light's only around $15.
By Poppy
Thirty
A slang term for a hardcore porno movie. Derived from the Roman numeral that stands for the rating (XXX).

I was watching a thirty when my dad walked into my room.
By Suzy
Thirty
A "key word" used by modern males to alert one another of an oncoming attractive female.

Hey Joe, thirty!
By Joelynn
Thirties
Marijuana that is not of supreme quality. Not completely shitty like shwag, but definetely takes alot to get you high. Often has many seeds and stems in it.

I'm not going to waste my money on that thirties - it will take four bowls to get me high. Stick with the flame.
By Elianore
Thirtys
Week or nasty weed. Comes from 30$ of an 1/8oz.

i coulnd't get that good shit, so smoke these thirtys
By Kristin
Thirty
A person in their teens or twenties who looks much older than their chronological age.

Ruth: "I am sooo young and beautiful."
Ali: "You are wrong. You're such a thirty."
By Aggy
Thirty
A girl that’s 3 times hotter than a 10.

“Damn son! Your girl’s a straight “Thirty”! Keep it up!”
By Kalie
Six Thirty Thirty
When a bitch so nasty that your dick can't hang any lower

Did you see that nasty bitch? My dick can't even recover from that six thirty thirty.
By Lisha
Thirty-five
number between thirty-four and thirty-six; often times used to express ACT scores/subscores

Justin: Did you hear Jeff got a thirty-five on his ACT?

Surrounding People: Wow, that is a fantastic score!

Jeff: Guys, c'mon I only doubled Karen's score.
By Ardys
Dark-thirty
the thirty minutes before nightfall, or the thirty minutes after night falls.basically the 1 hour time frame as it becomes dark.

i told david the party starts at dark-thirty.
By Sharon