Gorilla Thumb
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.
Gorilla's Thumbs
Really, really hard nipples.
'Ohh yes winter is here and the girls are out and about. There's Gorilla's thumbs all over the place'
Gorilla Thumb
A black or hispanic choade
Jessica: "Davon had such a gorilla thumb and I wasn't ready for it!"