cut the ground from under someone's feet

cut the ground from under(neath) (one's) feet

To suddenly cause problems for one. I plan to cut the ground from underneath the prosecutor's feet with this line of questioning.
See also: cut, feet, ground
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

cut the ground from under someone's feet

do something which leaves someone without a reason or justification for their actions or opinions. informal
See also: cut, feet, ground
Farlex Partner Idioms Dictionary © Farlex 2017
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