Exclamation used to taunt others for self-evidently embarassing behavior and other faux pas. This expression became particularly popular in suburbs and exurban areas outside NYC in the late 1990s.
In the line for the cafeteria Gio knocked over 'the pole' (the pole that holds the ropes up). Pretty much everyone was yellin 'brrp!' right in his face for two days.
by Robert J. Scarlet February 14, 2005