put your oar in
插手或干預他人的事務
口語·表達不請自來
英文釋義
to interfere or meddle in a situation or conversation, often unwelcome or without invitation
例句
He always puts his oar in when we're discussing private matters.
典故來源
源自劃船比喻，原指未經邀請就插入船槳，引申為多管閑事或干預他人事務。