A popular streamer on Twitch who does gaming but is most known for his creative challenges that engage his viewers to interact with his stream, such as letting his Twitch chat control his PC via computer scripts. Additionally, he has used voice commands to beat single levels of games or defeat certain bosses.
"Hey, did you see DougDoug stream last night? He let Twitch chat play Skyrim on his PC."
"Yeah, I ruined it for everybody when I typed jump and killed the player."
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.