A derogatory term used as an insult toward a person who is acting idiotic, oblivious, and/or like an airhead . Derived from the illustrious and comedic works of Mr. Bean , a bean is used to compare such actions.
Friend: yo now that I've graduated highschool I can't wait to flex my diploma
You: Aye fam whatchu mean? We haven't gotten our diplomas yet
Friend: then what is this hardcover we got? This not the diploma?
You: THATS JUST THE COVER YOU BEAAANN
( the friend was too headass to realize what was actually happening in the real world therefore they are considered a BEAN)