What is Broser?
1.
Someone who is posing as a bro. Most brosers are people who are incapable of ever being bros. Perhaps they are too nerdy or intelligent, socially awkward, or just don't have the right amount of starch in their collars.
Tom: Did you just see Jave Kelly?
Neil: That's not Jave, that's Nate and he's a broser.
See