rat hole
n.— «She also started to learn the offshore patois used to describe the different parts of the platform: the dog house, the monkey board, the rat hole, the cat walk.» —“Taking oil painting to a whole new platform” by Susan Mansfield The Scotsman (Scotland) Nov. 16, 2004. (source: Double-Tongued Dictionary)
Further reading
A remarkable new documentary explores the world of amateur and professional mermaiding and the language bubbling up within it. Some mermaiding enthusiasts greet each other with a friendly “Shello!” Plus, an adoptee wonders what to call...
To be creasing, or to be creased up, means you’re laughing so hard you’re doubled over at the waist, as if your belly has a big crease in it. This is part of a complete episode. Transcript of ““Creasing” and “Creased Up”: Laughing So Hard You...