The line comes from the language of live streaming, where viewers send virtual roses as small paid gifts to show support during a broadcast. Streamers often thank donors out loud by name of the gift, and short clips of those thank yous began circulating as reaction sounds on social media. This one spread because the wording is specific enough to be funny when reused elsewhere, whether for real gifts, compliments or likes. It remains popular as a quick audio shorthand for thanking an audience in an exaggerated way.