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1 definition by L Bobbins

 
1.
A mixture of the words cowin' and lush, this is a South Wales word, largely used in Swansea. It is used to describe something that is particularly amazing or attractive.
"Oh, have you seen that new girl? She's cowin' lush she is!"

or

"Oh ger a load of this ice cream. It's cowin' lush!"
by L Bobbins March 06, 2009