The Collaborative International Dictionary
Grouty
Grouty \Grout"y\, a. Cross; sulky; sullen. [Colloq.]
Wiktionary
grouty
Etymology 1
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Full of grout(s), that is, sediment. Etymology 2
a. 1 (context chiefly northern US English) angry or surly, sulky. 2 (context chiefly northern US English) lower#Verb; threatening to rain or storm#Ver
3 turbid as with liquor.
Usage examples of "grouty".
I once heard a grouty northern invalid say that a cocoanut tree might be poetical, possibly it was.