First track on 1975's underrated Who by Numbers. I primp my ears: the rhythym starts with a dried-peas being shaken and some syncopated boingy b'dooms. Then, barely audible in the background, Townshend counts four 2:4 bars, to cue in the rest of the band. Does he really say: 'one, two, three, four, five, six, bin, bag'? I believe he does.
It's one of the Lifehouse songs, of course: and in some sense about the travails, and marginalisation, of youth. Beyond that I really can't parse it. When I was younger I believe (without thinking about it too much) I took the title to be a variant of 'latch-key kid', but I don't now think so.