also: なんつって
expression
just kidding; not!
Colloquial phrase used to retract or downplay a preceding statement, similar to 'just kidding' or 'psych!' in English. Often added at the end of a sentence.
実は宝くじが当たったんだ。なんちゃって。
Actually, I won the lottery. Just kidding.
明日から宇宙旅行に行くんだ。なんつって。
I'm going on a space trip from tomorrow. Not!
noun-modifying (irregular)
Used prenominally to describe something that is a poor imitation, fake, or ersatz version of the real thing. Often carries a humorous or self-deprecating tone.
なんちゃってブランドのバッグを買ってしまった。
I ended up buying a fake designer bag.
彼はなんちゃって料理人だよ。
He's a pretend chef.