be on mettle

be on your mettle

(slightly formal)

to be determined to prove that you are good at something, especially in a difficult situation It's a tough interview - you'll have to be on your mettle.

Common Names:

Name	Pronounced	Usage
Mesut	-	Turkish
Akakios	-	Greek, Ancient Greek
Rajab	-	Arabic
HamİT	-	Turkish
Queenie	KWEEN-ee	English
Secundinus	-	Ancient Roman