tell shit from Shinola
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can't/couldn't tell shit from Shinola
rude slang Exceptionally naïve, unworldly, ignorant, or undiscerning. (Shinola is a brand of shoe polish, which is usually black or brown.) Why did you send a kid to be my partner on this case? He couldn't tell shit from Shinola! She can't tell shit from Shinola, and they're promoting her to head of Human Resources? Gimme a break!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
tell shit from Shinolaverb
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.