the rule whereby if a college student is present in his dormitory and takes more than fifteen seconds to answer after a knock, one can assume that he is masturbating.
Bill: Matt, are you there? (knocking)
Matt: Yep, hold on.
Bill: Fifteen second rule, you're officially masturbating. (turns around)
Hey everyone! Matt's masturbating!
The Urban Dictionary Mug
One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.
Buy the mug