1 definition by Johnsterama

1. n A beautiful sexy mom of a mom.
2. n Grandmother I'd like to fuck. Synonymous with Gilf.
3. n A great puma] in her fifties or sixties.
Steve: Hey, check her out. She might actually be a grandmilf!
You: You know Steve, you may be right!
by Johnsterama October 21, 2007

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