cloop /kluːp/noun 6verb 1forms 3 noun6 •A slightly hollow, percussive sound.She began walking away from the open room, toward the teddies, her shoe heels going cloop, cloop. — 2023 •The sound made when a cork is forcibly drawn from a bottle.[…] I prefer Sherry to Marsala when I can get it, and the latter was the wine of which I have no doubt I heard the "cloop" just before dinner. — 1846 •The sound made by the movement of liquid into a hollow space.The stream, black and sluggish, scarce appeared to move; the only sound you heard was the faint cloop of the water that the boat in its passage sent washing against the hollowed banks; […] — 1899 •The sound made by a horse's hoof hitting a hard surface.You will know soon enough when they are—cloop! cloop! cloop! go the hoofs under your windows long before you have thought of breakfast. — 1912 •A compression technology for Linux files stored on a read-only block device that allows files to be decompressed on the fly.The magic is in the big file called /KNOPPIX/KNOPPIX, an ISO9660 filesystem image compressed for the cloop device. — 2005 •(informal) A small, seedy bar or nightclub; a dive.He had resolved not to segue into the jig he used to do in the "cloops" because his singing was the issue here. — 1999 verb1 •To make a cloop (slightly hollow, percussive) sound.The young men brought up the rear, each with a basket, from which there came ever and anon a cool clooping noise, maddeningly suggestive of refreshing drinks imprisoned within the wicker. — 1872 formsclooped · clooping · cloops