put one's oar in

put one's oar in

Interfere with something or insert one's opinion, as in I'll thank you not to put your oar in when we're discussing a private matter. This term, referring to helping to row a boat, was first recorded in Charles Coffey's 1731 play The Devil to Pay: "I will govern my own house without your putting in an oar."
See also: oar, put
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