Beanaboo is a mostly derogatory slang term for a Western person who is obsessed with Mexican culture, Mexican food, often regarding it as a country with superior food to all other cultures.
One of the best friends you'll ever have, super kind and supportive, and just overall an awesome guy. You'll have the best inside jokes, and no matter how weird you are he'll still accept you for who you are. Bean is a dork in the coolest way possible and will be there for you if you ever need help. He's the best :)
Ariana Grande: Did you see that guywalking around the hotel earlier?
Leh: Yeah, Bean!
By plant classification peanuts are not considered to be a nut, in fact it is found to be a legume. This makes it closer related to a bean, there for peanut butter is bean butter. This can also be used in a derogatory manner that means cum
1) I had a bean butter and jelly sandwich for lunch.
2) The sex was so good last night Jimmy got his bean butter all over me!