grouch /ɡɹaʊt͡ʃ/noun 2verb 1forms 3 noun2 •One who is grumpy or irritable.I don't feel like hanging around with that grouch. •A complaint, a grumble, a fit of ill-humor. verb1 •To be grumpy or irritable; to complain.He spent all his time grouching about the problem instead of fixing it. formsgrouched · grouching · grouches