10 gallon asshat Share definition Flag 1. an asshat of extreme proportions. 2. one who engages in frequent and unwarranted asshattery that man is a 10 gallon asshat 10 gallon asshat by z-minus August 25, 2005 0 0 Get merch Get the 10 gallon asshat mug. Buy Now — $32.95 See more merch
