What is Broton?
1.
The sub-atomic particles that connect all "bros". The extra particle is what accounts for all of bro culture. It also allows bros to send messages among each other without having to speak.
"Did you see that chick, bro?"
"Nah man I didn't."
"I was sending you major brotons!"
See
2.
A guy that is a positive influence on another guy, usually younger, who will flock around the Broton like neutrons around protons. Like a Big Brother or role model.
"My boyfriend is a total broton for my little brother."
See