In French the term translates as ‘folding like a wallet’: un camion est mis en portefeuille or un camion est plié en portefeuille.
Google says there’s now a Belfast band with the same name as the alliterative phrase from Radiohead’s opening track of OK Computer mentioned previously.
Thom Yorke also doesn’t enunciate very well, and I thought it was “jackknifed troubadour” for a while. Probably until I saw the name of the user a couple posts ago (though that was years ago, not just now).