give (one) a run for (one's) money

To challenge one's ability, fortitude, or patience. Don't underestimate our opponents today—I think they'll give us a run for our money. Having an infant and a toddler sure is giving me a run for my money.

Common Names:

Name	Pronounced	Usage
Elisheba	i-LISH-ə-bə (English), ee-LISH-ə-bə (English)	Biblical, Biblical Hebrew
Aesculapius	[.i:skju'leipjəs]
Wealhm&Aelig;R	-	Anglo-Saxon
Mai (2)	mah-ee	Japanese
RÁ&Eth;ÚLfr	-	Ancient Scandinavian
Hirshel	-	Yiddish