A general term for a large obese human, mainly females, with shitty personalities and overall negative attitude.
Oh dude, she is such a slagbeast!
by Lane Carmen June 24, 2011
1 more definition
Top Definition
a fat whore, presumably your ex-girlfriend or possibly your friends mother.
"dang adam your mum is a slagbeast"
by archiewordgroup August 26, 2009

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