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!