Top definition
An amorphous blob of bros. Typically found in Irish pubs, college or frat house dining halls and aircraft carrier wardrooms world-wide.
"Dude, let's get this bromoeba moving", "Hey watch out, that bromoeba's slowly headed our way!", "I want to go to Wardroom 1, but it looks like the bromoeba's going to 3, eh well."
by HarveyWallbanger August 24, 2013