couch : Idioms & Phrases
couch grass
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noun European grass spreading rapidly by creeping rhizomes; naturalized in North America as a weed
dog grass; Agropyron repens; quack grass; witchgrass; witch grass; quackgrass; quick grass.
WordNet
Couch" grass`
Definitions
(Bot.) See Quitch grass .
Webster 1913
couch potato
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noun an idler who spends much time on a couch (usually watching television)
WordNet
covered couch
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noun a litter with a cover for privacy
WordNet
studio couch
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noun convertible consisting of an upholstered couch that can be converted into a double bed
day bed.
WordNet
To couch a spear ∨ lance
- to lower to the position of attack; to place in rest.
Webster 1913
To couch malt
- to spread malt on a floor.