scope on someone

scope on (one)

slang To regard or look at one with sexual attraction or interest. He spent the whole date scoping on other girls, so, no, I don't think it went very well. There's some girl at the bar scoping on you, Chris—you should go over and talk to her.
See also: on, scope
Farlex Dictionary of Idioms.

scope (on) someone

tv. & in. to evaluate a member of the opposite sex visually. He scoped every girl who came in the door.
See also: on, scope, someone
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • scope on (one)
  • scope someone
  • hots
  • like a moth to the flame
  • scope
  • scope in
  • ace
  • ace (something)
  • an ace
  • have regard to (something)