funny business

(informal)

dishonest or unpleasant actions If you try any funny business you'll be sorry.

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

verb

Name	Pronounced	Usage
Lionel	['laiənl]
Arman	-	Kazakh
'Aisha	-	Arabic
Cupid	KYOO-pəd (English)	Roman Mythology
MaËLys	-	French
Richardine	rich-ər-DEEN	English (Rare)