Today's Phrase
冗談だよ
Just kidding.
Used to clarify that a previous statement was just a joke. Change to '冗談です (joudan desu)' for polite situations.
Casual
A: えっ、本当に辞めるの? B: うそ、冗談だよ。
A: Eh, are you really quitting? B: Lie. Just kidding.
Polite
A: 本当ですか? B: いえ、冗談ですよ。気にしないでください。
A: Is that true? B: No, it is a joke. Please don't worry.