Source : WordNet®

twat
     n 1: a man who is a stupid incompetent fool [syn: {fathead}, {goof},
           {goofball}, {bozo}, {jackass}, {goose}, {cuckoo}, {zany}]
     2: obscene terms for female genitals [syn: {cunt}, {puss}, {pussy},
         {slit}, {snatch}]