Well, I have been for a while, but now I have a t-shirt to attest my bro-ness.
This shirt was created by Jeph Jacques, creator of the Questionable Content webcomic. The backstory of the "Three Cabrolleros" can be found here and here. The shirt is kind of obscure if you don't get the joke, but it makes me smile.
Why? Because bros make the world go 'round.
Joseph Smith may have founded the Mormon Religion, but Broseph Smith taught Jack-Mormons it's still ok to drink and party.
Brotato Salad isn't made with mayonnaise, making it a cold, nasty side-dish. Instead it uses beer. And pretzels. And more beer.
Brose Cuervo does not get you drunk. It keeps the party going.
Straight guys can also be Bromosexuals. It just means it's ok to have a sex with a girl when your bro is there, because it's ok to share with a bro. (remember, it's only gay if the balls touch)
Scarlett Johannson gets upset when her nude pictures leak onto the internet. But Scarlett Brohannson has no problem showing off the goods, as long as its at a kickin party.
Brofist. You can use it for greeting your bro, congratulating your bro, or using your brofist against someone's head to ward off the non-bro lame-o's.
G.I. Bro wasn't only an American Hero. He also threw a damn good party, and was popular with the ladies.
Abroham Lincoln freed the slaves in the 1800's, because he knew Hip Hop was going to be AWESOME dance-music for ladies to shake their thing to.
And finally, Bro Pesci is funny. Like a clown. He likes to make you laugh. Because he's a bro.
If you're a bro and want to buy this tshirt, please go to this site. If I see you walking down the street, I'll yell "BRO!", give you a brofist, and celebrate our camaraderie.