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1 definition by shteyngart

 
1.
A game where one male player exposes a small area of skin from their genitals to the other player. Then, the other player has to guess whether what they have been shown is cock or ball. Ricky Gervais is believed to be the founder.
Guy: Wanna play offal jim jam?

Girlfriend: Sure!

Guy: <opens fly> So what do you think?

Girlfriend: Cock?

Guy: You're right! Here's your prize.
by shteyngart September 22, 2009