A gamer brah is someone who plays exactly two types of
video games: completely brain-dead shooters, and games with tons of tits. They
almost always suck at both, but insist that their problems are not due to their terrible gaming skills, but are instead only because of the "fucking newbfags" they are playing with. They feed more kills than the rest of the team combined, and then tend to yell into the mic or post in all caps in chat, just to let
everyone know that they're actually super good at games and it's the team's fault for losing. They also frequently post long rants online about all the successful people who are supposably ruining gaming, even though they're almost as fake as gamer girls.
Gamer brahs almost never have
girlfriends. Most of the time, they got into gaming super late, and only because people online were saying it was cool.
If you ever hear someone online whining about how the MOBA champs don't have enough cleavage, or bitching about not being able to no scope in TF2, chances are that they're a gamer brah.