- noun the penis. These are more recent spellings of whang and whanger; words which emerged around the turn of the 20th century. They probably derive from an echoic British dialect word meaning beat, hit or slap, with a secondary meaning of strike in the figurative sense of impress or surprise. Although a vulgarism, wang is often considered less offensive than prick (but probably more offensive than synonyms such as dong, willie, etc.). Unlike many similar terms, wang does not have the additional sense of a fool.