Vacutwat Share definition Flag A vacuous twat of a person. A portmanteau of vacuous and twat. Did you see that hipster walking along with his trilby at a jaunty angle? That level of affectation is a sure sign of him being an utter vacutwat. Vacutwat by amscray September 13, 2019 0 0 Get merch Get the Vacutwat mug. Buy Now — $32.95 See more merch