The definition of wry is a mocking, biting or sarcastic sort of humor, or an unpleasant facial expression used to indicate displeasure.(adjective)
See wry in Webster's New World College Dictionary
Origin: ME wrien, to twist, bend < OE wrigian, to turn, twist, akin to OFris wrigia, to bend, stoop < IE *wreik- (> L rica, head veil) < base *wer-, to turn, bend
See wry in American Heritage Dictionary 4
adjective wri·er (rīˈər) or wry·er, wri·est (rīˈĭst) or wry·est
Origin: From Middle English wrien, to turn
Origin: , from Old English wrīgian; see wer-2 in Indo-European roots.
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