首を突っ込む くびをつっこむ Also written 首をつっこむ, 首を突っこむ Meanings Expression, Godan verb to poke one's nose into another's affairs; to have a hand in; to take a (deep) interest in; to meddle in to poke one's head (into a room) Kanji 首 neck. Read as くび. 突 thrust. Read as つく. 込 into. Read as こむ. Jinuma: Japanese Dictionary · Word lists