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When a Jake dares somebody in his biology class to lick a lung, but instead ends up licking the lung himself, he is known as a lung licker.
Jake: I dare someone to lick that lung!

Robbie: No, wtf, I'm trying to get on with my experiment

Jake: Fine, I'll lick it then

Robbie: Jake you're such a lung licker
by EdWilkins December 15, 2011