tough case

build a case

to compile evidence that supports a charge against someone.

case the joint

To thoroughly observe or examine a place, in order to familiarize oneself with its workings in preparation for criminal activity, often robbery.

catch a case

To be infected with a disease; used with of.

closet case

A person who conceals or denies their sexuality or gender identity.

do it tough

To be in a desperate situation; to struggle.

federal case

An exaggerated ordeal; excessive fuss or indignation about some situation.

gone case

Someone or something that is deemed irredeemable, hopeless and beyond help; a doomed person or thing.

hang tough

To remain strong-willed or brave, especially when experiencing duress or adversity.