The most successful bro- blend is probably the word bromance (meaning “a close platonic relationship between two men”) but there are dozens (if not hundreds) of bro-compounds that are more or less brona-fide. Unlike man- and guy- blends such as mandals (sandals for men), murses (purses for men), and guylights (highlights for guys), which are primarily ways to masculinize words for objects and practices associated with women, the bro- words take largely neutral terms and give them a coating of testosterone.
In fact, the number of words that can be prefixed with bro- is staggeringly brolific. If the first syllable of a word includes a long o sound, it seems that someone, somewhere, has substituted the letters b-r-o- for it or slapped them in front of it, but even non-o words can be blended with bro-. According to Urban Dictionary, which has hundreds of bro- coinages, there’s broap (bro + soap), Bro-Magnon (when your bro is so drunk, he resorts to behaving like a caveman), broletariat (”a working-class bro”), brotocol (the rules that govern bro behavior), brogrammer (bro + programmer), brodeo (bro + rodeo, “a social gathering of bros”), broptimism (the belief that your bros “will prevail”), brolliance (a pact among bros), bromiserate (to commiserate with one’s bros), bronomaly (behavior unusual for a bro), bropunzel (a bro with hair longer than shoulder-length), brobituary (a valedictory speech delivered at a bro’s wedding), and bromosphere (the ambience that bros find comfortable).
