not know from (something)
not know from (something)
To not know anything about something. From Yiddish, heard primarily on the East Coast of the US. Why don't you just stay out of this, OK? You don't know from running your own business. Ah, don't mind her, Phil. She doesn't know from nothing.
See also: know, not
Farlex Dictionary of Idioms.
know someone from someone
to tell the difference between one person and another. I don't knowFred from his twin brother. I know Bill from Bob, but I can't tell most identical twins apart.
See also: know
know something from something
to tell the difference between one thing and another. (Often with a negative.) You don't know a smoked herring from a squid! She didn't know a raven from a crow, and who does?
See also: know
know from something
to know about something. (Used on the eastern seaboard.) Do you know from thermostats? You don't know from anything!
See also: know
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
know from something
in. to know about something. (see also not know from nothing.) Do you know from timers, I mean how timers work?
See also: know, something
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
- doesn't know beans
- all in (one's) head
- (I) can't say as I do(, can't say as I don't)
- don't bet on it
- don't cry before you are hurt
- don't give up the ship
- don't hand me that line
- don't give me that line
- don't give me that story