Fifth Base

Fifth base is fucking a girl in the asshole.

Man, that girl has an onion ass.....I hope I get to fifth base on that shit!

by Pierce Binoche September 02, 2004

Fifth Base

Anal Sex

My girlfriend let me go to fifth base.

by Lazarus69 June 30, 2018

Fifth Base

Most people will tell you that fifth base is butt sex. If you've lost your anal virginity, the below example is one nights equivalence to butt sex.

Wilson: "How are things going with Cuddy?
House: "Great, last night I got to fifth base. That's 2 home-runs and then she gives me back a triple."

by Cason Bank March 20, 2019

Fifth Base

The true test of a relationship. It is when a male and a female truly love each other--through marriage, pregnancy, children and everlasting happiness. Sure, it may be cool and stuff to go for the milk instead of buying the cow, but you won't be saying that when your temporary slutty partner begins to hate you.

Lifeless dumbass who is too insecure to use a spoon or watch the movie Titanic: Awww man. All that work I did to get to a home run and now I have to start over. I envy all the nice guys and girls actually able to sustain a relationship :(

by VGerX2001 September 04, 2004

Fifth base

When one is getting fucked in the ass

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

by Ammei May 17, 2018

fifth base

The only base you can slide into where you KNOW you'll get your pants muddy.

Brian: How far'd ya get with her?

Mike: Fifth base!

Brian: Really?

Mike: Yeah, this mourning I totally had to wash the uniform.

by Brian_is_tasty July 01, 2006

fifth base

When you get past fourth base on a chick, (or on a guy if your queer). This is when you place your meat in her ass. Commonley refered to as Puerto Rican style.

Hey TJ, I fith based this chick on saturday night, Puerto Rican style. I pulled out and there was a peice of corn on my helmut.

by Kelly June 03, 2003