to (one's) cost

(redirected from to her cost)

to (one's) cost

To one's detriment; due to one's personal experience with something negative. Unfortunately, he's not as forgiving as we all had thought, as I found out to my cost.
See also: cost, to
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

to your ˈcost

(know, discover, etc. something) because of something unpleasant that has happened to you: Joanne’s not a very reliable person, as I’ve recently discovered to my cost.
See also: cost, to
Farlex Partner Idioms Dictionary © Farlex 2017
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