butt thong

butt thong

Another name for a thong, a type of underwear or bikini bottom with a strip of fabric that goes between the buttocks. How do people wear butt thongs like that at the beach? It's so embarrassing! I could never wear a butt thong—it's too uncomfortable.
See also: butt
Farlex Dictionary of Idioms.

butt thong

and butt floss
n. a thong bathing costume. (Mildly objectionable.) You’re not going to wear that butt thong in public are you? My mother called my bathing suit “butt-floss!”
See also: butt
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • butt floss
  • floss
  • butt
  • whale tail
  • pratfall
  • wedgie
  • wedgies
  • atomic wedgie
  • give (one) a melvin
  • melvins
References in periodicals archive
We are the wedgie, the butt thong between the cheeks of church and state.
It's not the heat, it's the vapidity
The agents asked, straight-faced, "Who is David Geffen?" On Fire Island, the isle of butt thong, pale-faced agents in white shirts and ties questioned gay men on the beach.
Face facts