bare-bum

alternative barebum

1. literallynot comparableWith one's bottom exposed, as for a spanking or a mooning.
2. broadlynot comparableStark naked.

   Having never experienced communal bare-bum soaking European style, I was sure I'd wandered into the men's room.

   1992 April, Martie Sterling, “My Last, Last Run”, in Ski

   2 more examples

   Of course I do, Gran! Julian is always walking around bare-bum. I know all about boys and girls. And love and babies and all.

   1992, Louise Leblanc, Maddie in Goal (trans. Sarah Cummins), Formac (1992; original French book published 1991), page 12

   We discovered trout and bears and foxes. And bees^([sic]) nests! Not to mention how to swim bare-bum down rocky falls.

   2009, John B. Duffield, A Cry for Help, →ISBN, page 21