BoGo
n.— «The flashlights usually sell for about $19.95 in American stores, but he has established a BoGo—for Buy One, Give One—program on his Web site.» —“Solar Flashlight Lets Africa’s Sun Deliver the Luxury of Light to the Poorest Villages” by Will Connors, Ralph Blumenthal in Fugnido, Ethiopia New York Times May 20, 2007. (source: Double-Tongued Dictionary)