can't cut the mustard

(British, American & Australian) also can't cut it (British)

if you can't cut the mustard, you cannot deal with problems or difficulties If she can't cut the mustard, we'll have to find someone else to do the job.

Common Names:

Name	Pronounced	Usage
Embla	EM-blah (Icelandic, Swedish, Norwegian, Danish)	Norse Mythology, Icelandic, Swedish, Norwegian, Danish
Ksenia	KSEN-yah	Polish
ValÉRia	-	Portuguese, Hungarian, Slovak
RadoŠ	-	Czech
Antonina	ahn-taw-NEE-nah (Polish), ahn-tah-NEE-nah (Russian)	Italian, Polish, Russian, Ancient Roman
Safi	-	Arabic