The Jarona sound effect originated in the indie game Deltarune Chapter 5, released in 2026 by developer Toby Fox. The line is spoken by Flowery, a boss character who shouts it during a high-energy battle sequence. Toby Fox later revealed in a newsletter that the phrase was inspired by a silly, anime-style move his older sibling used to shout during childhood play, loosely referencing the song My Sharona. The quirky voice clip quickly became a beloved meme within the gaming community, spreading across YouTube, TikTok, and custom modding platforms.