C’mon, Be Serious:

While there is no single prominent book, movie, or song explicitly titled “C’mon, Be Serious,” the phrase combines two highly common informal English expressions used to express disbelief, skepticism, or a demand for honesty. Linguistic Breakdown

“C’mon” (Come on): An informal contraction used to urge action, express impatience, or convey skepticism.

“Be Serious”: A phrase used to tell someone to stop joking, fooling around, or acting unrealistic.

When mashed together as “C’mon, you can’t be serious!” or “C’mon, be serious,” the phrase serves as an objection or refusal to believe what someone just said. Related Media Contexts

If you are thinking of a specific piece of media with a similar name, you might be looking for one of these:

C’mon C’mon (Film): A critically acclaimed 2021 drama film written and directed by Mike Mills. It stars Joaquin Phoenix as a radio journalist who bonds with his young nephew while traveling across the country interviewing children about their views on the future.

“C’Mon” (Songs): There are several famous tracks named “C’Mon,” most notably the 2012 electropop hit by Kesha, as well as a 2011 collaborative single by Panic! At The Disco and Fun.

Could you provide a bit more context on where you heard this phrase? If you are looking for a specific book author, TV show episode, or podcast, letting me know will help me find the exact match for you! C’MON definition and meaning | Collins English Dictionary