a bad egg

A dishonest or ill-behaved person. Primarily heard in US. We could tell he was a bad egg even at a young age.

(mainly American informal)

someone who behaves in a bad or dishonest way He's a bad egg - don't believe anything he says.

Name	Pronounced	Usage
Lou	LOO (English)	English, French
Marna	-	Danish
Anima (2)	AN-i-mə	English (Rare)
Archibald	AHR-chə-bawld	Scottish, English
Manfried	MAHN-freet	German
Hillary	['hiləri:]