A scary-ass bro that looks like a freaking cobra.
Dude, that jacket made me soil my pants. You look like a brobra.
n. Someone, typically a skater, surfer, or snowboarder dude whom you can count on. This person is laid back, mellow, chill, and doesn't trip. He is one of your homies. You articulate the word brobra as if you were Keanu Reeves in Point Break, or Jeff Spiccoli in Fast Times.
"Dude, careful with that board, it belongs to my brobra."