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
Ebba (1)	EB-bah (Swedish), E-bah (German)	Swedish, Danish, Norwegian, German (Rare)
Romano	-	Italian
Meryl	MERL, MER-əl	English
Abbie	AB-ee	English
Bunny	BUN-ee	English
Eliyahu	e-lee-YAH-hoo	Hebrew