twackalacker Share definition Flag It's a tweaker that lacks any brain cells to not do lame fuck off shit, it's bad enough he/she is a tweaker anyway.. The twackalacker will give or come up on anything or anyone to get a sack. Worse then a feind. twackalacker by Fuckin PINEAPPLES January 20, 2019 0 0 Get merch Get the twackalacker mug. Buy Now — $32.95 See more merch