when you had such good hard sex your vajayjay feels like ground beef

80/20 is when a dude is 80% dick and 20% body.

A term used to describe when a guy likes girls 80% and guys 20%

The belief that in a relationship, you'll never get 100% of what you want, so at most you get 80%. But some other person may come along and have that missing 20% you don't have. Some folks fall for the 20% just to realize they should've stayed for their original 80%. C/O Tyler Perry's "Why Did I Get Married?"

A simple diet plan of eating only 80% of healthy foods and 20% of unhealthy foods.

80% gaming 20% jacking off

The rule guys refer to when they think about cheating on their wives/girlfriends.

Their wife/girlfriend is the 80%: she cooks, cleans, gives him all her loving, and has decent sex. But it's never 100%.

The girl he wants to cheat on her with is the 20%: she's very pretty, has a great body, and is perfect at sex. However, she's a slob/druggie/junky/alchy.

(Seen in Tyler Perry's "Why Did I Get Married?")