Third-person singular simple present indicative form of grouch.(verb)
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Use "grouches" in a sentence
"News tips ... and that's really the only answer I have for the question I know I'll get from one of you grouches, which is: What does this have to do with religion?"
"And the reason why we are being "grouches" is because theres no material for it."
"We were fortunate in having no "grouches" among us."