The James T. Callow Folklore Archive

When you are at a bar with a group of people and
someone burps, the last one to put their thumb on
their forehead gets biffed on the head.

Submitter comment: The fun part of the game is getting people that
have no idea what is going on. People usually
catch on after getting hit two or three times.
Biffed means to get slapped on the forehead.

Where learned: MARYLAND ; BALTIMORE