get (one's) just deserts
To receive that which one deserves, especially a punishment or unfavorable outcome. (Often misspelled as "just desserts," due to the pronunciation of "deserts" being the same as "desserts" in this context.) The CEO cheated his clients out of nearly $4 million, but he got his just deserts when he was stripped of everything he owned and sent to prison for life. I'm not too worried about Eric getting ahead of me in the class rankings. If he cheated on his last test, then he'll get his just deserts! Don't worry, that shyster will get his just deserts one of these days—cheaters never prosper!
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.