When a small event, object, individual or term in a #PewDiePie video evolves into an internal phenomenon within the PewDiePie fan base, being the result of either highlighting by Felix Kjellberg himself or by being continuously posted about on his personal #subreddit r/pewdiepiesubmissions.
Bro 1: The tower of tambourine is so tall!
Bro 2: Yeah, but its just an outcome of the Kjellberg Effect.