A) Something that is doomed for failure. An action or idea that will lead to catastrophe in the near future. A cluster fuck.
B) Something that is cool, hip, or groovy. esp. Someone that is in touch or on board with a cool activity.
C) A promiscuous female or male. esp. One who readily performs oral sex on others.
2) A badass helicopter that will fuck your day up if you mess with the best.
1.B.) Yoda turned to me, a packed bowl in his gnarled little hand, and asked "Get down, do you?" That's when I looked at him and said, "Like a blackhawk, baby."
1.C.) I nudged Will as Sheila walked past us and told him, "Go for it dude, she's a total blackhawk." Will responded, "What, you mean she'll suck my dick?" I answered, "Yes, that is exactly what I mean."
2.) I told Chuck Norris he was a chump, and the next thing I know eighteen blackhawk helicopters come out of nowhere dropping ninjas out of the sky. That was a bad day.