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(hardy) har har
A sarcastic or unenthusiastic impression of a laugh, used to indicate that one thinks some joke or quip was not funny. A: "What did the surfer say about the London Underground? 'Totally tubular, dude!'" B: "Har har, Dad." A: "Man, this class is tough." B: "Yeah, who knew molecular would be so complicated?" A: "Hardy har har, very funny."
To engage in a very lively, raucous celebration. I've been busting my hump all week studying for my exams on Friday, so I'm going to party hardy after they're all done! I know she partied hardy on Sunday for her birthday, so she might not be in the best form this morning.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.