I do think this should be added to the glossary, it is becoming an accepted term to replace several other words including (but not limited to) begging, pleading, and groveling.

As defined by Mike Poole:

"Jilling : (adv.) The art of shameless begging and pleading without regard to one's self respect in order to gain possession of a chip(s) or other types of gaming equipment. Usually found associated with Harrah's equipment but is seen used on many other items. It is the most highly successful form of begging. The technique of Jilling was initiated and perfected by Jill S. Bitner in Prescott AZ. The technique has never been perfected to such an efficient level by anyone else to date. EXAMPLE: I WANT ONE!!!!! and PLEAZZZZZZZE!!!
Jilled : (v.) To have successfully gotten something for nothing or at a ridiculous price by the use of the Jilling technique. EXAMPLE: I was going to put these in eBay for $10,000 each but got jilled before I listed them."