-1 base 

99 year old virgin who lives by yourself. get a lifeee.

Hey dude. ive been to -1 base. whats a vagina?

-1 base by forkinmylawn October 18, 2009

Fifth base

When one is getting fucked in the ass

Sam!!!
What?
Cas and i got to fifth base!!
FINALLY !!!!

Fifth base by Ammei May 17, 2018

ur base 

This is your home location, full of your doods.

im in ur base, killin ur doods

ur base by The Humungus February 17, 2005

Mormon base system 

Similar to the regular base system but for more religious type people.

First base- hand to hand contact

Second base - A kiss on forehead, cheek, lips,etc.

Third base- any form of cuddling or spooning

Grand slam- after marriage the couple accumulates no less than 4 kids.

Jake was so nervous around his new girlfriend he had to start using the Mormon base system.

Mormon base system by G-unit 99 April 9, 2016

Tranquility Base Hotel and Casino

A holiday resort on the moon.

Person 1: have you ever been to Tranquility Base Hotel and Casino?

Person 2: yeah they have a pretty good taqueria there, definitely four stars out of five

Tranquility Base Hotel and Casino by MarkSpeaking February 11, 2022

infinity base 

A base so high it has never been achieved, because it doesn't exist. All that is known is that you need Chuck Norris, a fork, a blender, a llama, 50000000000000 other people, and a nuclear bomb.

Bob: "Dude, i got to infinity base last night!"
Joe: "So that's why we're all dead."

infinity base by Last Nights Party November 22, 2009

6th base 

you horny little bastards there is no 6th base

"hey dude i got to 6th base last night"
"shut the fuck up there is no 6th base you dill hole"

6th base by bigfoot January 16, 2004