1 definition by Just Your Mother
a derogatory name given to someone who is an avid liar; it also implies that they have done something improper, usually sexually. Properly said with a slightly British accent. May also be used as an exclamation.
Girl 1: "I have something to tell you."
Girl 2: "What is that?"
Girl 1: "I slept with your brother."
Girl 2: "YOU BULLYWANKER!"
Girl 2: "What is that?"
Girl 1: "I slept with your brother."
Girl 2: "YOU BULLYWANKER!"
by Just Your Mother January 9, 2011