know what's what

(redirected from one knew what's what)

know what's what

To know the true facts or most fundamental information (about someone or something). Kid, I've been doing this job for longer than you've been alive, so trust me when I say that I know what's what around here.
See also: know, what
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

know what's what

If you know what's what, you know the important things that need to be known about a situation. You have to know what's what and when to draw the line. You should come across the river with us. Then you will really see what's what.
See also: know, what
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

know what's what

have enough knowledge or experience. informal
1992 More I know what's what at work, so no-one's going to trip me up.
See also: know, what
Farlex Partner Idioms Dictionary © Farlex 2017

know what’s ˈwhat

(informal) know all that needs to be known in a particular situation or in general: Ask Ann. She knows what’s what. She’s been here for years.
See also: know, what
Farlex Partner Idioms Dictionary © Farlex 2017

know what’s what

tv. to be aware of what is going on in the world. We don’t know what’s what around here yet.
See also: know, what
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.

know what's what, to

To be cognizant of the full situation; to be familiar with all the facts. This term may have been coined by Samuel Butler (Hudibras, 1663): “He knew what’s what, and that’s as high as metaphysic wit can fly.” Dickens’s Sam Weller (Pickwick Papers) used it too: “‘That ’ere young lady’, replied Sam. ‘She knows wot’s wot, she does.’”
See also: know, to
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
See also:
Full browser ?