pissweak Share definition Flag As weak as a stream of urine (piss). Aussie - very weak , especially related towards effort . Jonny: "he couldn't pull the skin off a rice pudding" Travis: " yer, its a pretty pissweak effort" pissweak by wackyv8 October 7, 2010 0 0 Get merch Get the pissweak mug. Buy Now — $32.95 See more merch