Houshou Marine is a Japanese VTuber with Hololive who debuted in 2019 as the pirate captain of the agency's third generation, and her distinctive laugh became one of her signature traits across livestreams and fan clips. Viewers began isolating the giggle for memes, edits and reaction videos, where it spread beyond Hololive fandom through short-form video and soundboards. It remains popular because it is instantly recognisable, easy to place over a funny moment, and closely tied to Marine's playful, teasing on-stream persona.