What is Gorilla Thumb?
1.
A penis - particularly a penis that is curious and/or searching for something. The gorilla thumb might be particularly hairy or thick, although not necessarily. Ideally, it doesn't have a fingernail.
I'm tired. Get your gorilla thumb away from me.
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an uncle buck, is someone who impersonates the late john candy... usually found to be a 23 yr old, balding, assistant manager from stock..