free base

When you go to someone’s house and their parents aren’t home.

Did you go to Jess’s free base last night? That shit was awesome!

by thatsabigoof December 30, 2018

base ball

A user on the major league baseball forums who is too stupid, lazy or uncreative to come up with a real user name. Usually posts illiterate, meaningless garbage.

Can be found on pretty much any mlb message board.

by kolohe61 March 6, 2005

101st base

When you have sex with a female while she is menstruating and the guy is doing a shit and getting mess all over the place.

guy 1: omg man i got to 101st base with my girlfriend last name

guy 2: *throws up*

by Jubz! October 25, 2006

5th base

Rubbing Noses with someone you love very deeply. This is considered the ultimate sign of affection.

Dude i totally went to 5th base with Alex last night.

by Ben Malinowski April 5, 2008

5th Base

When a guy is having anal sex with a girl and he takes a large hoop earring, interests said earring in her butthole to make it gaping and then the male drops his balls into her butthole and removes the hoop earring for a tight fit of his balls in her butthole

Dude 1: Yo bro i just hit 5th base with this bitch
Dude 2: Deadass b?

by pattybey December 16, 2016

second base

when
If you're a guy:
You're touching your female partners boobs or vagine
If you're a girl:
You're touching your male parthers penis

Last night when I was with sharron I got to second base!

by clarkey buttfunks January 9, 2007

Base 2.0

Like second base, but much kinkier. Can involve hands way down pants, way up shirts, etc.

"Dude, me and Mattie went to Base 2.0 last night! It was hot!"

by antithesis3 January 6, 2009