Most dancers are generally human.

Great song, despite/maybe due to its hilarious lyrics.

http://www.youtube.com/watch?v=wvVOoCKjonY

Wikipedia:

There has been considerable confusion and debate over the line "Are we human or are we dancer?" in the song's chorus.^[5] Many have incorrectly heard "denser" instead of "dancer", a change which significantly alters the interpretation of the song's meaning. On the band's official website, the biography section states that Flowers is singing "Are we human, or are we dancer?" and also says that the lyrics were inspired by a disparaging comment made by Hunter S. Thompson about how America was raising a generation of dancers.^[6]

Entertainment Weekly's Pop Watch section called this line the "silliest lyrics of the week". They were puzzled by the interpretation, stating "most dancers are generally human".^[7] Ganz with Rolling Stone called the line "classic Killers' nonsense."^[4]