look up any word, like the eiffel tower:
 
1.
When you want to fist him/her but settle for three fingers
dude1: I heard that ho is gigantic.
dude2: yeah but i had to settle for the three fifths compromise
by anon182 August 27, 2012
 
2.
The optimal female to orgy ratio. An orgy containing three females and two males. This creates an orgy that is not only completely heterosexual, but also keeps the number of females and males close enough so everybody enjoys it.
Craig: Yo are you settin' up an orgy soon?

Nick: Yeah you know it.

Craig: How many girls you bringin'?

Nick: I'm settling for the three fifths compromise. Enough to keep it straight, but close enough to keep it fun.

Craig: Fuck yeah!
by Muammad October 17, 2013