be up to no good

(informal)

if someone is up to no good, they are doing something bad She thinks her husband has been up to no good because she found long blonde hairs on his jacket.

Common Names:

Name	Pronounced	Usage
Indri&Eth;I	-	Icelandic
Theodoulos	-	Ancient Greek
Mahalah	-	Biblical
Lindon	LIN-dən	English (Rare)
Kristina	kris-TEE-nah (German)	Swedish, Norwegian, Danish, Russian, German, Slovene, Czech, Lithuanian, Serbian, Croatian, Faroese,
Quang	-	Vietnamese