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A female's organ that has gone 'sour' from excessive use.
"Last year I would have hit that for a dollar but now she's all scrottage cheese"
by ChristineW March 31, 2006
A build up of sour cheesy substances around the scrotal area caused by a reluctance/failure to scrub the nut-sack regularly.
"Wash your balls son! Your scrottage cheese is stinking the house out!"
by smeg man September 03, 2009