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Definition

To have an adequate level of knowledge or skill; to understand what one is doing or talking about.

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In Context

  • ""Why are you so sure and they aren't?" the landsman said. . . . "Because Mr. Ricimer knows his ass from a hole in the ground, sir.""
  • "Foxx gave a comic's pause. "Just goes to show you, don't it? Some folks don't know their ass from a hole in the ground.""
  • "In the unofficial ad, the facilitator says about the man whose wife will be replaced, “This guy wouldn’t know his ass from a hole in the ground.”"
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Also Said As

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Opposite In Meaning

  • know one's stuff
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See Also

  • know someone from a hole in the ground
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Related Idioms

g

get the hang of

To begin to understand or manage at a basic level; to learn to handle …

 g

go through the mill

To experience the suffering or discipline necessary to bring one to a …

 l

level to the ground

To completely demolish, to raze.

 f

find one's ass with both hands and a flashlight

Synonym of know one's ass from a hole in the ground.

 c

crawl before one walks

To learn the basics before doing something at a more advanced level.

 u

understand the assignment

To excel at something; to demonstrate one's skill or talent.
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