Denshi Jisho — Online Japanese dictionary

冗談 じょうだん jest; joke; funny story
Common word, Noun, No-adjective 
冗談口 じょうだんぐち joke
Noun 
冗談事 じょうだんごと joking matter
Noun 
冗談気味 じょうだんぎみ being somewhat (half) joking; half seriously; half in jest; in a jocular vein
Noun 
冗談抜き じょうだんぬき seriously; joking aside
Noun 
冗談半分 じょうだんはんぶん being somewhat (half) joking; half seriously; half in jest; in a jocular vein
Noun 
冗談が過ぎる じょうだんがすぎる to carry a joke too far
Expression, Ichidan verb 
冗談じゃない じょうだんじゃない 1: It's no joke;
2: Gimme a break!; Sod that!
Expression 
冗談めかして じょうだんめかして jokingly; in the form of a joke
Expression 
冗談に紛らす じょうだんにまぎらす to pass (something) off as a joke
Expression, Godan verb with su ending, Obscure term 

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