eighteener 

1/8 ounce cocaine mudderfucters

Lets get an eighteener and skateboard all fuckin night.

eighteener by Dankdizzlezachmorris October 30, 2013

eighteen o'clock 

The eighteen year anniversary that occurs precisely the moment of a persons birth.

At exactly 1:15 am a dad awoke his child and said, " Happy birthday. Its eighteen o'clock and starting right now your considered of legal age, whats your plans for the future ?"

eighteen o'clock by jpg3 September 21, 2011

row eighteen 

Refers to public masturbation.

Can also be used to refer to any scandalous, embarrassing, or humiliating act performed in public, which act is followed by media attention and public scorn.

This phrase gained popularity following the infamous incident on United Flight 340 to Denver in mid-May, 2011, where an individual reportedly masturbated "to the point of ejaculation" while sitting in row eighteen. He was subsequently arrested and faces criminal misdemeanor charges.

That dude Row Eighteened it at work! I hear the receptionist is going to need therapy.

I'm going to drink some Four Loko and start Row Eighteenin' it at the club tonight.

I can't believe that guy just streaked through Wrigley Field and urinated on second base. He must have been sitting in Row Eighteen.

row eighteen by chindonya115 October 5, 2011

eighteenth base

Sticking your middle toe in the tip of a guy's penis while playing with his balls with your other foot

Chad: Hey, Jakob, I heard you got pretty far last night!
Jakob: Yeah me and Sadie got to eighteenth base last night! It was fucking magical

eighteenth base by Baddyfuckdaddy February 1, 2017

eighteen years old 

The year when your parents no longer whoop your ass.

Person 1: I TURNED EIGHTEEN YEARS OLD!
Person 2: No more ass whooping from your parents!

eighteen years old by iTwilight April 12, 2009

i have loved him since we were eighteen 

louis tomlinson confessing his undying love for harry styles by changing the lyrics in 18 and turning his entire body to face his one true love

Louis: “i have loved him since we were eighteen,”

Harry: “sixteen,”

random fan: “what the FUCK.”

i have loved him since we were eighteen by HS Lover July 15, 2020

eighteensome

You bastard. It's pretty obvious, an eighteensome is when 18 damn people are having sex.

Last night I was really drunk and somehow got an eighteensome.

eighteensome by GoldenBonnie09 October 16, 2018