funny business


noun Informal.

improper or unethical conduct, as deception or trickery: He won't stand for any funny business here.

Origin of funny business

An Americanism dating back to 1880–85

Words nearby funny business

Idioms and Phrases with funny business

funny business

Deceit, treachery, unethical conduct. For example, We suspect their outfit has been up to some funny business. [Colloquial; c. 1880]