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to not know beans about something
to not know beans about something
01
to have no information regarding a particular subject
Dialect
American
American![to {not} [know] beans about {sth} definition and meaning](https://cdn.langeek.co/photo/44878/original/?type=jpeg "to {not} [know] beans about {sth} definition and meaning")
Idiom
Informal
What is the origin of the idiom "not know beans about something" and when to use it?
The origin of the idiom "not know beans about something" can be traced back to early 20th-century American slang. "Beans" in this context is used metaphorically to represent knowledge or expertise, with "not knowing beans" indicating a lack of understanding or familiarity with a particular subject or topic. This idiom is typically used to convey a person's ignorance or incompetence in a specific area.
Examples
I don't know beans about cars, so I always ask a mechanic before buying one.
