wearing (one's) birthday suit

wearing (one's) birthday suit

Completely naked. Alludes to the fact that one is born without clothing. I have a recurring nightmare where I'm walking through school wearing my birthday suit. As kids, we had no problem going swimming together wearing our birthday suits.
See also: birthday, suit, wearing
Farlex Dictionary of Idioms.
See also:
  • birthday
  • birthday suit
  • tell (one) what (one) can do with (something)
  • tell someone what to do with something
  • tell what to do with
  • scare the crap out of (one)
  • scare (one) silly
  • frighten/scare somebody out of their wits
  • frighten one out of wits