funny business

noun, Informal.

improper or unethical conduct, as deception or trickery:

He won't stand for any funny business here.

Origin

1880-85, Americanism

Examples from the web for funny business

He put lawyers, jurors and the media on notice from the start that there would be no funny business.
While we've heard bone bruise and other rumors, the lack of a clear diagnosis means funny business.
Any divergence that shows up sets off alarm bells in those looking for funny business.
Still, there seems to have been some funny business.
She's one of my heroes, and lately there are some signs of funny business concerning the legal case against her attackers.
It's certainly a funny business, this failure to find him.
The art of comedy is, literally and figuratively, a funny business.
The play is full of funny business, and the sing ing is especially enjoyable.

Contemporary definitions for funny business

noun

deceptive, underhanded behavior

noun

foolish behavior; shenanigans

noun

amorous behavior; sexual intercourse

Slang definitions & phrases for funny business

Related Terms

monkey business

noun phrase

Frivolous pranks; japes and jests, etc: He was full of monkey business, the clown
Dubious and dishonest stratagems; trickiness: Show these kids that you're going to stand for no monkey business (1883+)

Idioms and Phrases with funny business

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