(じょうだん)()

じょうだんをいう
expression
to joke; to crack a joke
1. to joke; to crack a joke; to say something humorous
To make a humorous remark or tell a joke. Can also be used sarcastically when someone says something absurd or unbelievable.
冗談(じょうだん)()って()(なご)ませた。
I cracked a joke to lighten the mood.
冗談(じょうだん)()っているのか本気(ほんき)なのか()からない。
I can't tell if he's joking or being serious.
冗談(じょうだん)()うのはやめてくれ。(いま)真剣(しんけん)(はなし)をしているんだ。
Stop joking around. We're having a serious discussion right now.

The standard expression for "to tell a joke" or "to joke around." 冗談(じょうだん) means "joke" and ()う means "to say." The combination is extremely common in daily conversation.

COMMON PATTERNS:

  • 冗談(じょうだん)()う — to joke, to crack a joke
  • 冗談(じょうだん)じゃない — that's no joke; I'm serious (used to deny joking)
  • 冗談(じょうだん)でしょう? — you're joking, right? (disbelief)
  • 冗談(じょうだん)はよせ — cut it out with the jokes
  • 冗談(じょうだん)(つう)じない(ひと) — a person who can't take a joke

SIMILAR EXPRESSIONS:

  • ふざける — to joke around, to fool around (less about telling jokes, more about playful behavior)
  • からかう — to tease, to make fun of (directed at a specific person)
  • おどける — to clown around, to act funny (physical humor)

NUANCE:
冗談(じょうだん)()っている場合(ばあい)じゃない ("this is no time for jokes") is a set phrase used to express urgency or seriousness. 冗談(じょうだん)でしょう is commonly used to express disbelief, similar to English "You must be kidding."