All the other kids with the pumped up kicks, they'd better run, better run, faster than....but then what were they singing? faster than my brother? faster than my puppy? faster than my puppet? What does it sound like to you?
Turns out that the song is really a dark little psychodrama. Ann Powers has a brilliant take on it posted in her NPR blog The Record, where she compares it to The Talking Heads' "Psycho Killer." (but Talking Heads made paranoia a musical style while this is shiny).
I looked up the lyrics, and it's "faster than my bullet."
Note the discussion of the lyrics' meaning in the comments to the lyrics post.
This dubstep remix is great, the dancing is, too.