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

eighteenth amendmenting 

When one wants to stay sober for a given period of time

nah man, im eighteenth amendmenting for the night

eighteenth amendmenting by Posterboy69 April 21, 2010

eighteenth birthday 

When you become a legal adult and you can make your own decisions but your parents or any one older than you thinks you are still a child.

"It's her eighteenth birthday so she's going to get a tattoo."
"She thinks she's so grown because its her eighteenth birthday."

eighteenth birthday by Theimpracticaljokersarestilltr April 3, 2016

Eighteenth Birthday 

The age at which a girl is just old enough to have sex with an older man without him becoming a registered sex offender.

"Hey, its my eighteenth birthday! Now I can hook up with DILFS!"

Eighteenth Birthday by dilflover67 September 19, 2025

april eighteenth 

Anal sex day

On April eighteenth every girlfriend or wife has to give it up. Similar to Valentine's day.

april eighteenth by HarryCaStle June 7, 2016

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