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 25, 2011
Get the Slagbeast mug.
a fat whore, presumably your ex-girlfriend or possibly your friends mother.
"dang adam your mum is a slagbeast"
by archiewordgroup August 26, 2009
Get the slagbeast mug.