1 definition by JennSoJizztastic

Top Definition
Basically, the opposite of a boner.

If you see something utterly disgusting where instead of getting aroused, you get turned off.

an example of a cock shrink could be witnessing your parents having sex.
Megan: "Lets have sex"
Joey: "Okay!"
Megan: "ohh harder John! err uhh i mean Joey"
Joey: "I'm not in the mood anymore, thats a cock shrink."


Brian: "I need to go jerk off" *Walks to bathroom to jerkoff and sees dad on toilet* "uhhh nevermind, my cock shrank"
by JennSoJizztastic July 25, 2011
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.