put one's oar in
put (one's) oar in(to) (something)
1. To offer or express one's opinion (on some matter), even though it was not asked for or desired. I don't know why you feel you have to put your oar into every dispute Terry and I are having. The members of the board are perfectly capable of arriving at a decision of their own accord, so I'll thank you for not putting your oar in, Tom.
2. To involve oneself in an intrusive or nosy manner into something that is not one's business or responsibility. I wish my neighbors would quit putting their oars in and just leave us alone! Liam, don't put your oar into your brother's affairs—he can manage well enough on his own.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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."
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
put one's oar in, to
To insert one’s opinion; to interfere in someone else’s business. This term, with its analogy to contributing one’s efforts to rowing a boat, dates from the late sixteenth century. Charles Coffey used it in his play The Devil to Pay (1731): “I will govern my own house without your putting in an oar” (1:2).
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer