Baby it’s cold outside

baby, it's cold outside

A phrase used to comment on cold weather or temperatures, referring to the Frank Loesser song of the same name. Ooh, baby, it’s cold outside! Turn up the heat!
See also: cold, outside
Farlex Dictionary of Idioms.

Baby it’s cold outside

and BICO
sent. & comp. abb. It’s cold. (From a popular, midcentury song.) Temp’s about 20. BICO! Zip up your overcoat, baby it’s cold outside.
See also: baby, cold, outside
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • baby, it's cold outside
  • BICO
  • take (one's) death (of cold)
  • catch (one's) death (of cold)
  • catch death
  • catch one's death (of cold)
  • catch your death
  • cold snap
  • brass monkeys
  • take cold