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1.
When someone's butt protrudes so far away from the small of their back that you can use it as a shelf. Also a term for a really nice ass.
1. Yo lookadat hottie. He got a booty shelf.
2. I'm so upset that I don't got a booty shelf that I'm gonna go get butt implants.
3. I am enjoying your booty shelf today. *squeeze*
by Migizz April 18, 2006