Another word on the long list of words that describes an ugly girl.
Sian is a Muttbag.

She was a right muttbag, what were you thinking?
by Artbrut July 23, 2007
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A bag of weed containing multiple types
That dime I got from Barney must be a muttbag - I've felt different each time I've smoked it.
by Mgwuke M. July 6, 2011
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