get your comeuppance
get (one's) comeuppance
To receive retribution. Don't worry, she'll get her comeuppance—you can't gossip about people without them doing the same to you eventually.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
get your comeˈuppance(informal) receive a punishment for something bad that you have done and that other people feel you really deserve: I was glad to see that the bad guy got his comeuppance at the end of the movie.
Farlex Partner Idioms Dictionary © Farlex 2017