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
Xanthippi	-	Greek
Moray	-	Scottish
Taliesin	tal-ee-ES-in (Welsh)	Welsh, Arthurian Romance
Imke	IM-kə (Dutch, German)	Frisian, Dutch, German
Ablitt	['æblit]
Bartolomej	-	Slovak, Croatian (Rare)