Thumb crotch

the awkward piece of skin between your thumb and pointer finger

"dude, my thumb crotch is so itchy."

"i know, so is my penis."

by ApolloStar December 13, 2015

Crotch Thumb

A term to describe someone's embarrassingly small penis and claim that it is massive. - First described by @_james_3005. 2017

Chelsea "He has a massive penis, Chantelle told me yesterday after she slept with him"
Bradley "What? That lying bitch, she told me he had a crotch thumb!!"

by THESPITFIRES October 18, 2017