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An itch developed after a person is swimming in a non-stagnant body of water, (ex: bay, ocean, river) then persists to apply pressure to the butt by sitting or other activities.
"I got mad bay butt after swimming in the ocean than sitting down"
by Big Red 65 January 23, 2009

Words related to Bay Butt

butt crabs dandruff hemroids herpes itch rash