if you know what's good for you

Fig. if you know what will be to your benefit; if you know what will keep you out of trouble. Mary: I see that Jane has put a big dent in her car. Sue: You'll keep quiet about that if you know what's good for you. Sally: My teacher told me I had better improve my spelling. Bill: If you know what's good for you, you'd better do it too.

Common Names:

Name	Pronounced	Usage
Dulcibella	-	English (Archaic)
Aiken	['eikin]
Severin	ZE-ve-reen (German)	German, Swedish, Norwegian, Danish
Louisa	loo-EEZ-ə (English), loo-EES-ə (English)	English, German, Dutch
Jacenty	yah-TSEN-ti	Polish (Rare)
Rebekka	re-BE-kah (German), RE-bek-kah (Finnish)	German, Dutch, Danish, Norwegian, Icelandic, Faroese, Finnish, Biblical Greek