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1.
The cool carl is when somebody takes a shit, and places it into the freezer. When the shit is completely frozen, someone else uses the frozen shit as a dildo.
I'm eating a lot of corn and nuts today because I'm gonna prepare my girlfriend a cool carl for her birthday today.
by Andre Paul January 16, 2008
 
2.
When an individual freezes their feces and proceeds to use it as an instrument for sexual pleasure. Preferably a dildo.
It’s so hot to day X. I agree Y, and I’m so bored!
Hey! I just remember I prepared two Coolcarls overnight!
by Evangelos January 14, 2007