look up any word, like bae:
A Chief Brownthumb is a person who has 'thumbed' another human's rectum and left with a small secretion or hershey's kiss on the thumb or thumbnail.
Man, I just Chief Brownthumbed that girl.
by 911 and Cali August 26, 2009

Words related to chief brownthumb

anal brownthumb butt indian plug poop