WTF BOOM!
From UnAnything Wiki
WTF BOOM! is a sound/video clip that was used like hell in selected YouTube Poops. The clip is from the Steve Moustache Show with The Million Dollar Man (Ted Dibiase) screaming "WHAT THE FU-'" but that phrase is interrupted with a nuclear explosion, Mega64 himself from Mega64's Cold Fear Ad saying "BOOOOOOOOOM!!!!!!" paired with a clip taken from the music video to the song "Do the Evolution" by Pearl Jam, depicting a skeleton pilot laughing.