Define Thumb Dick Meaning

A word used to describe a man who is endowed with a short and stubby penis with the dimensions of the average sized human thumb.

When someone has massively large thumbs example "look at fletch's thumbs there huge" " yeah he's got a right set of dick thumbs!"

A practical joke picture message posing a penis in place of a thumb during a photograph explaining a thumb injury that has resulted in a seriously swollen thumb.