What does Brobrahnic Plague mean?

Brobrahnic Plague meaning in Urban Dictionary

The Brobrahnic Plague. Typically used in regards to bros in abundance, or in relation to most frat houses. Continual audible use of the words bro, brah, vagina, fagot, dude, tight, and unwell. Alcohol pong tournaments, afflicted or tapout t-shirts, backwards fitted baseball hats, bud light, and biddies.