Amsterdam Mustache 

A prank perpetrated by a male on an incapacitated victim. The person administering the AM waits for the victim to either fall asleep or pass out, and then drizzles a sticky substance such as honey on the victims lower face. He then squats directly over his victim’s lower face and uses a beard trimmer or something similar to shave his nut sack and gooch, lightly covering the sticky area with hair from his nether region.

Bob passed out at the party and Jimmy proceeded to give him an Amsterdam Mustache as payback for Bob tea bagging him at the last party.

Amsterdam Mustache by Sandman469s October 31, 2017