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general::
Phrase(s): case the joint
1. Sl. to look over some place to figure out how to break in, what to steal, etc. (Underworld.) • First of all you gotta case the joint to see where things are. • You could see he was casing the joint the way he hung around. 2. Sl. to look a place over. • The dog came in and cased the joint, sniffing out friends and foes. • The old lady entered slowly, casing the joint for someone of her own age, and finally took a seat.
McGrawhill's American Idioms And Phrasal Verbs