no earthly (something)

no earthly (something)

No conceivable or practical (something). You had all day, so there's no earthly reason you couldn't have finished this on time! It's very sweet that you bought me a laptop, dear, but I'm 85—I have no earthly use for one of those things!
See also: earthly, no
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

no earthly ˈuse, ˈreason, etc.

(informal) used to emphasize that there is no use, reason, etc. at all: There’s no earthly reason why she shouldn’t come with us.
See also: earthly, no
Farlex Partner Idioms Dictionary © Farlex 2017
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