It means anally sodomizing another man and causing his rectum to bleed like a bitch as in a prison rape
2) Something kids in America say to be funny
It refers to the snot in their nose that forms kernels and then they eat
Girl/guy gets offended and hurt.
2) 7 y/o American kid: "I'm gonna eat a bloody buggar."
45 y/o English woman: "Don't say that. it's entirely vile."