yuk /jʌk/exclamation 1noun 1verb 1forms 3phrases 1 exclamation1 •An exuberant laugh. noun1 •(slang) Something, such as a joke, that causes such a laugh.The latest yuk from Congress is called the balanced-budget amendment. It could wind up making slumps deeper and recoveries more difficult — and that's no joke. — 1992 verb1 •To laugh exuberantly. formsyukked · yukking · yuks Phrases with yuk yuk it upTo clown around: to behave clownishly; to joke idly.