35th base 

Raping yourself while simultaneously being mauled by a corset wearing Gorrila. This must be performed inside a guitar painted with one million sets of female genitals.

Guy: Dude! 35th base is awesome!

Dude: Woah, doesn't it hurt?

Guy: Nah, I was orgasming constantly for days after. My wounds had head by the time it was all over.

35th base by musefan2010 May 27, 2008

35th Base 

Having sex with Buddha's belly button, and becoming the new Buddha. You then go through a series of events very much like the Santa Clause Movies.

What happened to Amelia Earhart is often assumed unknown but was actually 35th Base in action.

35th Base by An Elephant December 15, 2008

3.5th base

When a woman gives you a blowjob,see 3rd base, however doesn't allow you to cum and then proceeds to have sexual intercourse with you(4th base). Once again, she comes to the point when you are almost about to ejaculate, and then hops off and leaves you. Also see blue balls

Milton: FUCK MAN, my balls hurt so bad!

Aziz: Why?

Milton: This bitch I was fuckin' yesterday got me to 3.5th base. I'm so pissed off.

Aziz: Oh dudeLOL, that sucksLOL.

3.5th base by Suicide_Nacho August 27, 2008