(short for bromosexual)
Two or more guys that are supertight to the point of gayness without actually being gay. Just really really close.
"did you know what Matt and Bobby actually sleep in the same bed and tickle each other naked!"
"yeah, them boys are SO bromos"
"fo' sho'... "
Guys that attend concerts/sporting events and high five, chest bump, fist bump, put their arms around each other, hug and get way too close to each other's ears cause they're trying to talk to each other due to the noisy situation because their band/sports team is doing well.
While at the Foo Fighters concert, I saw a lot of bromos.
When bros become homos.
2 x bro+homo= BROMOS
lawrence and colin used to be such good friends, but now they're just bromos.
Shawn is totally trying his bromo moves on brad.