Gant Share definition Flag A mixture of the words Gay and Cunt, used to describe somebody acting idiotically, stupidly or being totally useless. 'Im so fed up with him today, he is being a proper Gant' Gant by DasWunderkind November 17, 2009 0 0 Get merch Get the Gant mug. Buy Now — $32.95 See more merch