Question

at one's expense If you blame the project failure on us, you'll look better, but at our expense.note: There is also the related expression "at one's own expense," meaning to pay the cost oneself. Example: Fred wanted the job so badly, he was willing to fly to Atlanta for the interview at his own expense.

Accepted Answer

at a cost to

Idiom	at one's expense
Meaning	at a cost to
Example	If you blame the project failure on us, you'll look better, but at our expense. note: There is also the related expression "at one's own expense," meaning to pay the cost oneself. Example: Fred wanted the job so badly, he was willing to fly to Atlanta for the interview at his own expense.

One's Cost Expense Blame Project Failure Note Related