noun
self-tsukkomi; quipping at one's own remark; poking fun at something one just said
A colloquial comedy term where the speaker makes a comment and then immediately retorts or criticizes it themselves, as if playing both the boke (funny man) and tsukkomi (straight man) roles. Common in casual conversation and online banter.
「今日は早起きしたよ。…って、もう昼じゃん！」とセルフツッコミを入れた。
I said, 'I woke up early today... wait, it's already noon!' and made a self-tsukkomi.
彼はいつも話の最後にセルフツッコミをして笑いを取る。
He always gets a laugh by adding a self-tsukkomi at the end of his stories.
Compound of セルフ (self) and ツッコミ (tsukkomi, the straight-man retort in Japanese comedy). The term likely emerged from internet and variety-show culture.