- a person's head.
- a coin or a bank note considered as a coin: I can't pay for the ticket, I don't have a bean in my jeans.
verb (used with object)
- energetic; vigorously active; vital: He is still full of beans at 95.
- stupid; erroneous; misinformed.
Origin of bean
- full of energy and vitality
- USmistaken; erroneous
Word Origin for bean
Old English bean "bean, pea, legume," from Proto-Germanic *bauno (cf. Old Norse baun, Middle Dutch bone, Dutch boon, Old High German bona, German Bohne), perhaps from a PIE reduplicated base *bha-bha- and related to Latin faba "bean."
As a metaphor for "something of small value" it is attested from c.1300. Meaning "head" is U.S. baseball slang c.1905 (in bean-ball "a pitch thrown at the head"); thus slang verb bean meaning "to hit on the head," attested from 1910.
The notion of lucky or magic beans in English folklore is from the exotic beans or large seeds that wash up occasionally in Cornwall and western Scotland, carried from the Caribbean or South America by the Gulf Stream. They were cherished, believed to ward off the evil eye and aid in childbirth.
Slang bean-counter "accountant" recorded by 1971. To not know beans (American English, 1933) is perhaps from the "of little worth" sense, but may have a connection to colloquial expression recorded around Somerset, to know how many beans make five "be a clever fellow."
full of beans
Lively, energetic, in high spirits, as in The children were full of beans today, looking forward to their field trip. This expression has no valid explanation. [c. 1840]
Also, full of prunes. Acting foolish, talking nonsense, as in One cup of coffee won't hurt you—you're full of prunes. [c. 1930] Also see full of crap.
see full of beans; not have a bean; not know beans; not worth a dime (bean); spill the beans; tough break (beans).