ro-ro
n.— «The Kaholo is a roll-on/roll-off barge—”ro-ro,” in the parlance of maritime shipping—that is far easier to load and unload than if cars and trucks had to be hoisted on and off.» —“Young Brothers gets ro-ro barge” Pacific Business News (Honolulu, Hawaii) Mar. 8, 2007. (source: Double-Tongued Dictionary)
Further reading
Cat hair may be something you brush off, but cat hair is also a slang term that means “money.” In the same way, cat beer isn’t alcoholic — some people use cat beer as a joking term for “milk.” And imagine walking on a...
Have you ever googled your own name and found someone else who goes by the very same moniker? There’s a word for that: googleganger. Plus, the language of hobbyists and enthusiasts: If you’re a beekeeper, perhaps you call yourself a...
“Ro-ro” is in the OED2, cited from 1969.