1 definition by hopcock
A colliquial term for friend or mate. Originates from the romany word for 'good friend', 'mush' being used in the phrase "mush from another bush" (as a variant on "brother from another mother" or "chap from another flap") in which 'bush' is used to mean the pubic hair and the sexual organ located beneath of the mother of the individual in question.
by hopcock May 17, 2011