The act of shaking or flapping a man's genitals until they make a clapping noise. Usually done in groups to see how loud of a clap one can get, also for bragging rights. Only done in groups after calling the requisite, "No homo."
by NewEnglandSteeze December 21, 2008
Get the British Clappermug. by anonymous May 14, 2021
Get the British Crumpet Clappermug.