Somebody who's totally and utterly addicted to eating beans (extacy pill's) to the extent where one only goes out clubbing to eat as many beans as they can
Hey man did you see that guy all munted spewing up all over that chicks shoes? He's a hardcore bean eater
Slang used rarely for British people. It’s a term that originated from the stereotype of British peopleeating beans on toast. It is used often used in a derogatory context, but is not a harmful term.