2.)('s) Goverment suits, usually FBI, ATF or DEA Also "blackbirds on the wire" Means a phone line is tapped.
3.) Somone who acts happy in public but is an emotional wreck in private. Somone who dosn't advertise their depression.
Guy2: Yeah no sweat, I got my blackbird with me.
2.) Oh shit man, bail out! We got a couple of blackbirds on our ass!
b.) Guy1: Hey man, is this a good time to talk?
Guy2: I don't think so, I hear some blackbirds on the wire.
3.) Girl: I've been real fucking worried about sarah since her mom died.
Guy: she seems to have gotten over it.
Girl: yeah right, have you been to her house lately? She's a total blackbird.
2. A US spyplane which currently holds the record for the highest ceiling and fastest plane ever to fly.
Batman: That's a blackbird
2. The SR-71 Blackbird took off from the airbase