French 3rd base 

Anal sex

"Hey! What are you guys talking about?"
"Anal sex."
"Oh! You mean French 3rd base?"
"Yep."

French 3rd base by Jawscan August 3, 2015

playing 3rd base coach 

When the bill comes for food or drink, The friend who starts patting himself down searching his jacket and pants for money that he knows isn't there, like a third base coach giving signals to the batter. He's just waiting for the rest of the guys to come up with the bill

As soon as the bill came, Brett was playing 3rd base coach.

playing 3rd base coach by raujero December 9, 2016

3rd base 

3rd Base is getting either a Hand Job, Fingering or Oral Sex. Can also be used as foreplay before sex or just a Sexual activity without having to actually have full Sexual Intercourse

"hey .. whats third base actualy feel like?"
"It feels like warm apple pie..."
-American Pie

3rd base by Cosnett April 6, 2005

3rd base 

oral sex, usally closely followed by intercourse

i got to 3rd base with your girl last night

3rd base by unknown April 3, 2004

3rd base 

The touching of tongues to private parts

3rd base is Blow jobs; eatin out

3rd base by crazyemiiee March 28, 2009

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.

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...

3rd Base by Sabian June 3, 2004