Bam to behold, a public bulletin board, built of both brilliance and barbarity by bastards with boners. This bastion, no mere bulwark of boredom, is a brutal barrage of blistering bullshit, barely benevolent... but behind the bigotry and boobs, beyond the bitter broadcasts of bragging buffoons: here be the body politic. A brotherhood of blasphemy, blessed with more balls than brains, battling the bland, the bogus, the benign. Bedlam? Bring it on. But I babble... better to be brief. You may call me /b/.

http://www.urbandictionary.com/define.php?term=%2Fb%2F