short for romance-bromance; a situation in which a boy experiences competition for his attention between his girlfriend and his bro
Lily is Jack's girlfriend, but she has trouble getting Jack to spend time with her because Jack and Rob are always hanging out. Its a very awkward ro-bro.
your romanian "brother" than isn't actually your brother by blood or marriage.
you live in a country that isn't romania ... you're the only romanian kid for miles until your parents make you play with their friends' kid ... this kid can potentially be your ro-bro
I had an awesome time with my ro-bro(s) this weekend, we got sauced and high-fived all over the parking lot