don't quit the day job

cliché Don't leave your current employment in order to pursue some other ambition, because the odds of that succeeding are slim. Said especially to someone engaging in some activity as an amateur. A video of the famous actor singing a cringeworthy rendition of "Danny Boy" has gone viral online. Don't quit the day job, pal! A: "So, what did you think of my new joke? I was going to use it in my act at the comedy club tonight." B: "Yeah, um… maybe don't quit the day job, kid." Margaret loves to bake, but everything comes out dry and overly sweet. It's a real "don't quit the day job" situation, we just don't have the heart to tell her.