noun
busybody; meddler; nosy person
A person who unnecessarily interferes in others' affairs; often used in a light, teasing way. The word combines お節介 (meddling) and 焼き (burning), implying someone who 'burns' with the urge to meddle.
彼はいつも人のことに首を突っ込む、本当にお節介焼きだ。
He's always sticking his nose into other people's business; he's a real busybody.
お節介焼きの叔母がまた私の恋愛に口を出してきた。
My nosy aunt started meddling in my love life again.
Compound of お節介 (meddling, nosiness) and 焼き (baking, burning), literally 'meddling-burner', suggesting someone who is consumed by the desire to interfere.