to screen a
call is to look at the caller ID of an incoming
call and decide whether or not to answer it.
to have your
call screened is similar to being side buttoned
mary:
hey your phone's ringing who is it?
sven: (looks at phone) oh my gawd it's my cokehead ex.
mary: eeww you don't want to talk to him. screen that
shit.
sven: yeah no kidding. (presses ignore) scrrrrrreenin that!