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a person who is willing to exchange sexual favors for snacks.
1. Kati S. is the most slammin' snack daddy I've ever banged.

2. Katie J. likes her snack daddies big and black.

3. Mount Holyoke girls love the snack daddies from Amherst.
by SnackDaddyDos December 03, 2008
A man who pays his women in snacks for sexual favors.

A man who has his nuts and asshole played with.
You see that Snack Daddy over there? Yeah, so? His ho had had a heart attack from all the donuts she was given.
by billygoatjr September 11, 2011