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1.
when you had such good hard sex your vajayjay feels like ground beef
Man we hit it so hard last night I my stuff feels like 80/20
by eighty twenty girl July 08, 2010
 
2.
A term used to describe when a guy likes girls 80% and guys 20%
Guy1: "Dude... I think I'm 80/20."

Guy2: "Sweet. Let's make out."
by maps II September 07, 2006