The phrase borrows its rhythm from 'Bodies,' the 2001 breakout single by American nu-metal band Drowning Pool, whose shouted chorus 'let the bodies hit the floor' became a durable internet meme. Over the years, editors have twisted the hook into countless lyric swaps, and 'normies' is one of the most natural: internet slang for ordinary, mainstream people. The clip trades on that contrast, aiming the song's raw aggression at something harmless, which is why it keeps popping up in memes, gaming edits and reaction videos whenever someone basic becomes the punchline.