The act of substituting or changing a word to incorporate the word bro to make you more awesome or appealing to a crowd of fellow males.
Examples of Bromenclature :
"Randall hooked it up with a fake I.D. so I could mack on all the skeezy bar sleeze. What a fuckin Bromosapien."
"Dude, Eric copped out on us again to hang out with his woman, what a faux-breaux."
"Thanks for the lift Brobi Wan Kenobi!"