be somebody's loss
idiomPart ofloss
be somebody's loss — idiom
1. used to say that if someone does not take an opportunity, they are the ones who
1.idiom
Definition
used to say that if someone does not take an opportunity, they are the ones who will miss out on a benefit.
Example
If Quinn does not want to join the team, that is his loss — we will find someone else.
She decided not to come to the concert, and it was her loss because the band was amazing.