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

3rd base 

head or a hanjob

Dude, your a fucking pussy. It's been a month and u still haven't got to 3rd base yet

3rd base by StL May 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.

3rd Base by Miketee May 16, 2009