Nem hiszem, hogy van rá bevett magyar kifejezés. Az ilyenfajta marketing kifejezésekre az jellemző, hogy szó szerint átvesszük őket. Én ezt nem ajánlom.
Az értékesítési / disztribúciós jelzőt muszáj odaírni, mert könnyen például vízelvezető csatornára lehet asszociálni. Nekem az értékesítési csatorna kifejezés tetszik jobban, de a disztribúciós csatornára is van példa:

http://www.bellresearch.hu/content.php?param=56

Igen, igaza van Mohay Andrásnak. Az 'eltömítés' szó valóban rossz választás. A neten kutakodva a "channel stuffing" kifejezést sokszor az "overload" szóval hozzák összefüggésbe. Egyszerűen: túlterhelik az értékésítési csatornát.

http://files.findlaw.com/news.findlaw.com/hdocs/docs/sunbeam...

"3. Also in 1997, the Sunbeam Defendants were responsible for a critical disclosure
failure: they reported Sunbeam's significant 1997 revenue growth without informing investors
that this increase had been achieved not only by illegal accounting, but also at the expense of
future results. The Company had inflated its revenues by “channel stuffing”, i.e., overloading
channels of distribution by offering discounts and other inducements in order to sell product now
that would otherwise be sold in the future. Sunbeam had so “stuffed” its customers with product
that the Company’s future results would suffer."

http://en.wikipedia.org/wiki/Channel_stuffing

"Channel stuffing is the business practice where a company or a sales force within a company inflates its sales figures by forcing more products through a distribution channel than the channel is capable of selling to the world at large. This can be the result of a company attempting to inflate its sales figures. Alternatively, it can be a consequence of a poorly managed sales force attempting to meet short term objectives and quotas in a way that is detrimental to the company in the long term."

http://www.entwistle-law.com/legal_news/securities_litigatio...

"Bristol - Myers had long had sophisticated systems for tracking inventory, developed after an earlier overstocking flap 10 years ago. Fred Schiff, its longtime controller and later its chief financial officer, said 2 1/2 years ago that Bristol - Myers was unique in the drug industry in how closely it monitored inventory. Yet when the company in April 2002 admitted overloading distribution channels, Mr. Dolan, its CEO, stated that he had only recently gotten the company to build mechanisms to track prescription demand. "

http://bear.cba.ufl.edu/karceski/FIN7447/WSJ 2005/WSJ_011205...

"Overloading suppliers with too much inventory to boost profits can be an illegal practice known as channel stuffing, and nobody's suggesting that GM is doing that. But it is worth noting the upside of high dealer inventories for an auto company. Auto makers book sales and earnings based on sales to dealers, which then must sell the vehicles to real people. GM management's compensation is based in part on earnings that were helped by vehicles now sitting on lots. "