The clip belongs to the MLG montage parody style that spread on YouTube in the early to mid 2010s, when editors layered air horns, hit markers and exaggerated reactions over ordinary gameplay. Short vocal bursts like this kid's ooh were shared on soundboards and reused in countless edits because they were instantly recognisable and easy to drop onto any moment. The humour comes from treating minor plays as epic events. It is still used today in gaming edits, reaction videos and meme compilations that reference that era.