by john smith jesus November 20, 2003
Get the groinglemug. by slash August 13, 2004
Get the groinglemug. the difference in colour between the skin and the tip of the penis. higher percentage, more contrast.
person #1: My tip is dark pink, almost red, but my
skin is so pale!
person #2: Bro, your groingle percentage has got to be 85 or above!
skin is so pale!
person #2: Bro, your groingle percentage has got to be 85 or above!
by chompgiraffe June 29, 2024
Get the groingle percentagemug.