大きなお世話

大きなお世話 (おおきなおせわ) means none of your business; unwanted meddling.

Kana
おおきなおせわ
Meaning
none of your business; unwanted meddling
Japanese Example
そんなことまで言われるなんて、大きなお世話だ。
Translation
Telling me that is really none of your business.