put your oar in
US /pʊt jʊər ɔr ɪn/
UK /pʊt jʊər ɔr ɪn/

1.
口を挟む, おせっかいを焼く
to interrupt or interfere in a conversation or activity, especially in an annoying way
:
•
He always has to put his oar in, even when it's none of his business.
彼はいつも口を挟む、たとえそれが彼の関与することではないとしても。
•
I wish she wouldn't always put her oar in when we're trying to make a decision.
彼女が私たちが決断しようとしているときに、いつも口を挟まないでほしい。