case someone/something out

case out

slang To observe and examine someone or something, often to gain knowledge for a specific future purpose. A noun or pronoun can be used between "case" and "out." I cased my opponent out in preparation for the big fight. Judging from the security footage, those men cased out the shop hours before robbing it.
See also: case, out
Farlex Dictionary of Idioms.

case someone/something out

tv. to look someone or something over carefully, with a view to additional activity at a later time. He cased out the fixtures to see which ones to replace.
See also: case, out, someone, something
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • arrange for
  • arrange for some time
  • arrange some music for
  • not do (someone or oneself) any favors
  • rescue from
  • rescue from (someone or something)
  • identify with
  • attune to
  • ask back
  • orient to