Originally Posted by KVS
Well, it literally refers to the process of putting a self-adhesive sticker over the relevant areas of a paper ticket, and then hand-writing the necessary changes on the sticker. This process can only be used in situations where a ticket re-issue is not necessary.
My AZ tickets are stickered; I sent in my tickets to Nicolo but he sent the new tickets back but with the original dates! After I sent them back in, the return segments had the sticker on them with the NYC office stamp over them.