The unwritten rule among men. When a bro confides in another bro about facts, opinions, or other bro things it is not disclosed to the women. Basically a respect of privacy among men.
Andryon: "Yo Steve I think your a lucky dude getting a five women plow session in a single day."
Steve: "Thanks Andryon, but remember, what a bro knows never goes to the hoes."
Andryon: "I gotchu not a word to the women"
From the phrase "u mad bro," brown was used as a substitute for mad first by Sp00nerism. "y u so brown bro," or "turn the brown down," are phrases to express that someone is being a shit. Kootra, then began when in shock from being uber pwned will shout WHAT THE BROWN. The phrase "what the brown" is now widely used by Kootra and other creatures to express utter confusion.
Junkyard129: Yeah, she was a hot piece of flesh.
Kootra: ಠ_ಠ what the brown...
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UberhaxorNova impersonated Kootra by plugging his nose and saying "What the brown," and "WHA CHE."