flipped a shitburger Share definition Flag (v.) to act out in an unseemly display of anger and/or insanity. "When I told Joey I wanted to break up he totally flipped a shitburger and crashed my car into a tree." flipped a shitburger by Ave. July 14, 2009 0 0 Get merch Get the flipped a shitburger mug. Buy Now — $32.95 See more merch