a synonym for pimp, a person who provides gash for others in return for a small fee. Gash can be referred to as a vagina, a cunt or an axe wound.
You would visit a gashmonger if you were desperate for sex and had no other way of getting it.
by david987589 May 25, 2008
meaning a prostiute
you slept with 6 mans your a "gash monger"
by matthew heather September 17, 2008