Chun Chun Maru is the name of Kazuma's sword in KonoSuba, and the phrase became a small fan-favorite joke thanks to the series' comedic delivery and character reactions. This short clip is associated with Megumin, voiced by Rie Takahashi, and it spread through anime meme edits, short reaction videos and soundboard uploads. People still use it because the name itself sounds funny out of context, while fans immediately recognize it as a KonoSuba reference. Its short length also makes it easy to drop into fast comedic edits.