When something is really cool or you like it. Falcons are also the fastest flying birds.
Tanner: Yo, Brody I like your new shoes, those are fly as a falcon!
Brody: what the fuck did you just say?
When you are walking with someone, or group of people and somebody else come In front of you and walkblocks you to walk next to that person or group of people.
Oh come on Jeff you totally just walkblocked me!