bare-butt

alternative barebutt

1. CanadaUSnot comparableslangWith the buttocks exposed, as for a spanking or a mooning.
2. CanadaUSbroadlynot comparableslangStark naked.

   […] All the while, he's paddling toward the beach, and when he got up there, the shark was cruising around on the inside. So he took his shorts off, threw them to the shark and just walked bare-butt down the beach. […]

   2009, Stuart Holmes Coleman, Fierce Heart: The Story of Makaha and the Soul of Hawaiian Surfing, St. Martin's Press, published 2009, →ISBN

   2 more examples

   It has taken millions of years of evolution — pelagic, geologic, biological, and cultural — to create the Monterey Peninsula of today, a charming series of communities that appeal to bare-butt, stoned-out hippies as much as to some of the wealthiest and most talented people in the world.

   2001, Thom Akeman, Monterey Peninsula: A Cypress Shore, Graphic Arts Center Publishing, published 2001, →ISBN, page 7

   Although Horcón has tolerated bare-butt bathing for some years, the municipalidad of Pichilemu wants to be the first to officially accept nudism, despite the opposition of its parish priest, who declared 'nudism leads to adultery'.

   2005, Tim Burford, Chile: The Bradt Travel Guide, Globe Pequot Press, published 2005, →ISBN, page 369