A very permiscuous girl (slut) who also has a very bitchy attitude. (bitch=mutt).
That girl I just met from the bar totally wanted to blow me but I could deal with her bitchy personality anymore, damn slut-mutt.
by MistahBradshaw August 30, 2010
A dog carried around usually in a hand bag by celebrities such as Paris Hilton.
Check out that slut Paris Hilton over there carrying her Slut Mutt. I bet she uses her furry checkbook to pay for everything as well.
by Jimmy B from Oz December 13, 2010