A meme used to express laughter, disbelief, or mockery. Came from some dude on Twitter. There are other variations like "folk😂" or "distant relativeðŸ˜"
"Broooo the teacher targeting me for no reason I don't even do anything" *throws a desk across the room*
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi