monkey business

1. 1.

   mischievous or deceitful behavior

   Broadermischief

Questions about monkey business

What does monkey business mean?

monkey business means "mischievous or deceitful behavior".

Is monkey business a common word?

monkey business is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.