The line comes from Quo Vado, the 2016 Italian comedy film starring Checco Zalone as a hapless public employee, where the phrase ma è del mestiere, meaning it is part of the job, is delivered as a comic excuse. Italian viewers lifted the short exchange into WhatsApp voice notes and soundboard clips, where its brevity made it ideal for reaction edits. It later circulated on TikTok and meme pages as a shrug for everyday blunders, keeping the film's catchphrase alive well beyond its theatrical run.