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Coise is an abbreviation of the name Marcoise, Marcoise is a play on the name of Marcus and Marcus is a joke name for someone named Mark.

Thus someone who is ugly with big ears and called Mark may be known as Coise.

Please also see Carbootoise, Carfunkle, Art Garfunkle, Art of a Guff, Crud, Grunt or Crunt
Coise is an ugly little Crunt.
by jlang1 December 03, 2011
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