The phrase comes from Elf, the 2003 Christmas comedy starring Will Ferrell as Buddy, a man raised by elves who uses cheerful, made-up exclamations instead of swearing. Son of a Nutcracker became one of Buddy's most quoted lines, and clips of the outburst later spread through reaction videos, memes and TikTok edits where creators needed a loud but family-friendly swear substitute. Its staying power comes from that balance: it sounds furious, reads as harmless, and is instantly understood even by viewers who have never seen the film.