Grandmuthah 

1. A grandma who does not act like the stereotypical grandma
2. A really cool grandma

Nugget: My grandmuthah bought her a book by some guy named Timothy Freake...
CoNAWR: Wow, you have a really cool grandmuthah.

Grandmuthah by Elizabeth Tudor May 31, 2006

Grandmuthafucker 

somebody who fucks grandmothers!

"ooooh young MAN"

Grandmuthafucker by Liam Bucket January 31, 2004