not hack it

to be unable to work or deal with something effectively Most people think he just can't hack it in this business anymore.

Name	Pronounced	Usage
Ulrich	UWL-rikh (German)	German, French, Ancient Germanic
Bohumila	-	Czech
Lakeisha	lə-KEE-shə	African American
BrÍGida	-	Portuguese
Rei	ṙe:	Japanese
Hall&Thorn;ÓRr	-	Ancient Scandinavian