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couch grass

[kouch, kooch]
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noun
  1. any of various grasses, especially Agropyron repens, known chiefly as troublesome weeds and characterized by creeping rootstocks that spread rapidly.
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Origin of couch grass

1570–80; couch, variant of quitch
Also called quitch, quitch grass.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for couch grass

couch grass

noun
  1. a grass, Agropyron repens, with a yellowish-white creeping underground stem by which it spreads quickly: a troublesome weedSometimes shortened to: couch Also called: scutch grass, twitch grass, quitch grass
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012