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a word used to describe a dirty whorish harlet. with loose morals... with a penchant for butter churning...
'dude, look at that girl'
'mate i know she's such a cossin!'
'i know!! i saw that bitch butter churning last night!'
by butter-lover May 04, 2010
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A word used in the Nottingham/East midlands area of England.
A word described as arguing with one another such as..

1) We all was Cossin'

Or Cursing (swearing) at one another.
by Jordyfarm April 04, 2012
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