a name/label used in reference to someone you should have been allowed to call grandmother, BUT because your parent is an AB/DL you are forced to refer to her as a MommyAnn; emphasis on the word mommy. In doing so against your will animosity, hostility, and ill will develop leading to the creation of your term of endearment, GrandCunt.
(1).Some people have a grandmother, others have a grandma, I was forced into having a MommyAnn until the day I revolted, now I have a GrandCunt.
(2).Bootz, "Shoo Fresh you know you rich grandma buy you those dank kicks you need fo school..."
Fresh, "Jigga please! you know I aint got no grandma, I got stuck with a GrandCunt.
by noLIMITsouljagirlz May 14, 2010
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Avery old woman, e.g. a senior, who once in her day
would get plowed by many men.
So many that she has trouble urinating.
Yo, man you see that old chic over there?
Yeah.
Dude, I heard that she is a total rich grandcunt.
by Thatonedudenamednickrod November 8, 2009
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