don't I know it

don't I know it

I know that very well or am fully aware of it (due to my particular circumstances). A: "Wow, I guess you guys still have a lot to get done before the baby comes." B: "Yeah, don't I know it."
See also: know
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

Don’t I know it!

exclam. That is really true! Late? Don’t I know it. I’m yawning like hot cakes.
See also: know
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
See also:
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