gash on a lash

1) A mistress or a "bit on the side".

2) Someone willng to accept a booty call.

Boris: Who's that then Scotsman?

Scotsman: She's my gash on a lash.

Boris: That's disguating Scotsman.

by scotsman_too_hotsman March 07, 2009

gash on the lash

A group of soemwhat promiscuous young ladies going out on the town and getting drunk, usually behaving badly.

Here comes some more gash on the lash!

by Ace w-n February 27, 2008