15th base

Ramming a girl with a pool cue then beating her father over the head with it.

"DUDE WTF, you went to 15th base with my sister last night and now my dads in the hospital!!!"

by Dillon Labrek August 16, 2006

eighth base

Getting to fouth or home base with two women at the same time.

My wife let me get to eight base with her and her best friend.

by Lucky Larry May 13, 2004

43rd Base

Using three hands when you masturbate, all you're own.

"Dude, I got to 43rd base last night."

"You mean 44th right? Cause I saw the fighter jet in your driveway this morning."

by FSMASTER January 17, 2009

89th Base

When you penetrate a lemon with your dick and your fingers at the same time while singing sex bomb by tom jones with a kilogram of sherbet balanced on your forehead.

OR

When an irishman sucks off a polishman on a cycle to brighton

Man 1: Yeah i got to 89th base yesterday, got hit by a car afterwards as well...
Man 2: Wow really? Thats cool

by MarkNortherns March 18, 2009

10th Base

This is just second base in binary. Nothing to be proud of but makes the beeks feel better.

nerd - "I got to 10th base last night"
dude - "Holly shit what is that"
nerd - "I felt up Holly's tits"
dude - "loser, everyone's done that"

by -GunnerX December 10, 2008

bases loaded

To convey in polite words that fellatio, intercourse, and anal sex is likely to happen in the same night, or a general inkling that something great will happen.

I just slipped that girl some roofies...bases loaded.

by fizzpuss May 18, 2010

56th base

Where you go in a time machine and find the past version of you and fuck yourself whether you like it or not, either way, one of you wanted it

Past version of you: I think i might go to bed
Present version that timetravelled : mmm hello me, sex time
Past version : this is too crazy im being shafted by ...myself!
Present version: i think i'll call this 56th base

by mysterious S May 24, 2009