1 definition by Alviethestud

Top Definition
The act of tossing a mug of beer at a friend's posterior region while he is urinating in public, mooning, or just happens to have the area overly exposed.
The other night my drunk buddy was taking a leak off the balcony and had his pants around his ankles, so we gave him a beer bidet.
by Alviethestud January 26, 2010

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