jacking
n.— «In Japanese advertising parlance, a “jacking” occurs when an advertiser purchases a substantial portion of all of the ad space available in a particular medium or within a geographic area (the term “jacking” is derived from the English word “hijack”). Most commonly it’s seen on trains, when advertisers buy out the entirety of ad slots inside the cars, and often have tailor-made graphics or billboard-like posters placed on the exteriors too.» —“Great Japanese train advertising: IKEA Japan” by Michael Fiorella Japan Marketing News Apr. 15, 2008. (source: Double-Tongued Dictionary)