Back Alley Buffet Share definition Flag When a bunch of old homeless men eat anything ANYTHING edible or non-edible out of the dumpster. Ugh! Last night I was taking a shortcut home and saw a bunch of homeless men having a back alley buffet. They even at a fucking rat! Back Alley Buffet by WoLfBaNdIt February 27, 2018 Get the Back Alley Buffet mug.