18 

The age where an American can:
1. Legally buy pornography
2. Legally buy cigarettes
3. Legally gamble in Indian Casinos
4. Legally be concidered an adult
5. Be tried as an adult in a court of law
6. Be drafted for a war they don't believe in
... but still cannot buy alcohol.

Billy: Wow! I turned 18! I'm going to buy cigarettes and gamble in a shoddy Indian casino!
Joey: Wow! I turned 21! I'm going to buy vodka and gamble in a real casino!
Billy: ... damn country.

18 by Matt May 13, 2006

18 

You're old enough to know better, but young enough to not care

Mom-Act your age not your shoe size, you're 18 for cryin out loud!
Kid-Make me!

18 by Kay1708 February 15, 2009

18 

The age you're waiting for your girlfriend to turn.

"Broo Jessica's birthday is coming up right? She's turning 18?"

"Yeah man finally, we've been dating for 3 years now, it's about time I lose my virginity, I'm god damn 23 years old."

Jessica to her best friend: "When do you think I should tell him that I want to wait until marriage?"

18 by DannyDimes December 10, 2020

18 

The age at which your dick stops growing

Bob : “He’s 18 and only has two inches”

Jerry : “Sucks for him”

18 by Urboy666 January 2, 2021

18 

The number eighteen is often said on intercoms in grocery stores late at night as a code to let store workers know that there is a pretty girl close by. The one represents one girl and the 8 represents the curves on her body.

Gabe(on intercom): "Teddy we have a code 18 on aisle 5 i repeat, code 18 on aisle 5, thank you."

18 by nigga gabe August 1, 2006

18 

The age which you are first considered a human being at. Any age below 18 is highly discriminated against almost everywhere in the world and you are not yet human in the eyes of almost everyone. People under the age of 18 are legally allowed to be, with the exception of being murdered or tortured, treated exactly like slaves of the 1800's by slave owners, called "adults, parents, or gardians" for obvious reasons.

Eddy: I know I have AIDS and I'm going to die tomorrow but, I'm 60 years old and I lived 60 great years so I couldn't be happier.

Bobby: No, you lived 42 great years, the years before that you were not a human being, remember?

Eddy: Oh yea, maybe by the time you're my age, age discrimination will be illegal and people under the age of 18 will be treated the same as people over it.

Bobby: Wonder what they'll find to discriminate against after that happens, they already used blacks and gays.

18 by Not Yet a Human May 14, 2008

18 

The age you can buy a pack of cigarettes or go fight for your country in a war (Both potentially fatal), but are still considered too young to drink alcohol.

Person 1: Dude, yesterday was my birthday! I turned 18!
Person 2: What did you do all day?
Person 1: I decided to enlist!
Person 2: ...stfu moron...

18 by Jessica like whoa! May 9, 2006