not know (one) from a hole in the ground

(redirected from didn't know her from a hole in the ground)

not know (one) from a hole in the ground

To not know who one is just by looking at them; to have never met one before. Even though Jake had worked at the company for nearly 10 years, the boss still didn't know him from a hole in the ground. I don't blame them for not giving me permission right away. They don't know me from a hole in the ground.
See also: ground, hole, know, not
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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