A weird culture, utterly nontransferable to the ring, had formed at this one.

In essence, purchasing an e-book meant purchasing a nontransferable key to unscramble the encrypted content.

All passes are nontransferable, and will be forfeited if presented by any other than person named thereon.

Goldenvoice is reportedly considering making the tickets nontransferable, possibly even issuing them with the buyer's name and photo on them.

(I wouldn't learn until later that the keys were nontransferable.