Definitions by Sniffjack

Sniff my thumb 

When You pick your butt with ur own thumb and it smells bad u ask somone to sniff it for you

Sniff my thumb is when you have an itch in ur butt and it smells really bad and you dicide to pick it with your thumb and then ask somone to sniff it

Sniff my thumb by Sniffjack February 20, 2017