a bro is a usually white kid with backwards hats. Sticking out of these hats you could see massive wings that distract you form his real face. You will hear bro a preppy kid preferably from Greeniwch or up in California is "laxing it up" or when they meet up for a first time. Kids who are bros make up stupid nick names like roach
"YOOOO BRO wats good man im having a sweet barbecue with bro dogs we could have a major chill sesh bro."