gravy plane
n.— «Democrats have criticized the all-GOP trip. Because most of those on board contributed heavily to the Mickelson campaigns, Democrats labeled it the “gravy plane.” They said it was purely a political junket.» —“Resolution Passes Honoring National Guard” by Joe Kafka in Pierre, South Dakota Associated Press Mar. 23, 1993. (source: Double-Tongued Dictionary)
Further reading
How do you pronounce pecan? Is it pee-KAHN or PEE-kan? And why are there different pronunciations of the name of this nut? The word pecan was borrowed into English more than once, and from numerous Native American languages that had variations on...
Ron in Gloverville, South Carolina, wonders about the phrase since hatchet was hammer, which some use to mean “for a long period of time,” as in My family has lived here since hatchet was hammer. Another phrase he’s heard indicating the same thing...