Butt-naked

adj, slang

adj, slang ·Uncommon ·College level

Definitions

Adjective
  1. 1
    Stark naked, completely nude. Canada, US, informal, not-comparable

    "They could hardly have all marched off butt-naked."

Antonyms

All antonyms

Example

More examples

"There are two butt-naked children playing on the beach."

Etymology

Probably related to (and perhaps simply a variant of) buck naked. It is not clear which of the two forms came first, but the earliest written evidence suggests that buck naked is present some four decades earlier.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.