Top Definition
a synnonym for a grandmas nasty old crusty vagina. even though people dont think its possible, a yellow/green gooo will develop after too long of a period without sex or after menopause.
Q:why didnt grandpa go down on grand ma?

A:have you ever opened a grilled cheese sandwitch?

kid talking to grand pa
kid:grand pa?
grandpa:yes boy?
kid:arent you lactose intolerant?
grandpa:why yes child. i am... why do you ask?
kid: well, every time im over hear i see you eat grandmas grilled cheese and you dont seem to look sick untill you open your eyes.
by will tremaine May 10, 2005

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