Phrase exclaimed when placing an image of an avian creature on any item, especially one that was "handcrafted" or "thrifted" so as to make it totally adorable and artistic. It's, like, soooooooo cute! Whether it's a necklace or a t-shirt or an iPad cover or a corset, it could probably use a bird on it.
Hipster 1: Oh my god, I LOVE your tote bag, where did you get it?
Hipster 2: Oh this thing? I just bought it for $75 at Brooklyn Flea but it was so boring until I put a bird on it!
Hipster 1: You should sell it on Etsy!
The act of crossing the street, by foot, illegally (when that red hand says otherwise, or you simply aren't even at an intersection though one is only a few feet away). This forces you to to sprint at high speeds, forgetting about the friends you left on the other side, simply because you are fearing for your life. Generally causes regret mid-way, but turning back is not an option. Often times the phrase, "Let's bird-dog it!" Is yelled pre-crossing, or ,"I'm bird-doggin' it!" is yelled mid-run.
May also be called "j-walking".