twattock Share definition Flag A modification of twat, (literaly, little twat) used as an insult, and is useful when an extra sylable is needed in an amusing poem or suchlike. My heavens, isn't Mary and Jimmy's boy a twattock? Yes, but what did you expect from those two? twattock by steroozi April 30, 2004 0 0 Get merch Get the twattock mug. Buy Now — $32.95 See more merch