not know beans about

not know beans about something

to know nothing about something not know the first thing about something I don't know beans about computers - I've never even used one.

Name	Pronounced	Usage
Nace	-	Slovene
Ionas	-	Biblical Greek, Biblical Latin
Narciso	nahr-CHEE-so (Italian), nahr-THEE-so (Spanish), nahr-SEE-so (Latin American Spanish)	Italian, Spanish, Portuguese
Fredo	-	Italian (Rare)
DonndubhÁN	-	Ancient Irish
Isa (1)	-	Arabic