mansan Posted in M Best definition mansan adj. when you take, cut, bite the end of something to make it shorter. (original meaning; to bite the end of a boys dick off) “As she was sucking me off she bit the end!” “Ouch! You got mansan’d!” How satisfied are you with the definition? Looking for mansan meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 66 times.