1. To have sex with
2. To put your penis into
3. To fuck up
1. I cocked up your MOM!
2. I like to cock up dogs!
3. I really cocked up my relationship!
by Mark December 21, 2004
What the hell does cock up mean???
Does anyone know what it means?
by William Shakespeare December 12, 2003
When you're getting a slight boner in public, and you go into the bathroom and flip it north so it is held up by your pants. Usually is held up by tightening your belt.
"Dude, I had the worst cock up today".
by buttholebabbbyyyyyyy February 18, 2015

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