3rd Base

Medicine: When a medical student performs a female genitourinary pelvic exam.

I can't go to the show tonight because I am learning how to give a female genitourinary pelvic exam from 6-10pm, but at least I'll round 3rd base.

by Dmesher February 19, 2008

3rd Base

It feels like warm apple pie... (Taken from "American Pie").

Have Ibeen to 3rd base... wouldnt you like 2 no... my 8th girlfriend can tell U tho...

by Sabian June 3, 2004

3rd Base

In the corresponding bases, 3rd base involves oral sex, either a girl giving a boy fellatio or cunnilingus.

Kristi and Ben got to 3rd Base when Kristi gave Ben fellatio.

by Miketee May 16, 2009

3rd Base

Anal... the new 3rd base. Doesn't count unless it is in the stink.

Serge: "Oh man! I got to 3rd base last night with that hottie from the club!"
Chris: "Nice! How was the head?"
Serge: "What? That was 1/2 a base ago, I plowed that asshole."

by TSFfoLife December 29, 2010

3rd Base

the one after 2nd base.

1st Base, 2nd Base

by uknown February 7, 2003

3rd Base

In dating, the act of oral sex on a woman

Due, I got to 3rd base with my girlfried last night!

by hooligan333 October 6, 2003

3rd Base

Spelled '3rd bass'
Legendary rap band from the late 80's, who boasted the dope ass album "The Cactus LP"...

Yo homes, 3rd bass still rocks!

by Stanz June 19, 2003