know where it's at

know where it's at

to be alert and know how the world—or some part of it—really works. Man, you just don't know where it's at! I don't know where cool jazz is at.
See also: know
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

know where it’s at

tv. to know the way things really are. I know where it’s at. I don’t need to be told.
See also: know
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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