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Phrase(s): put one’s oar in [and] stick one’s oar in; put one’s two cents(‘ worth) in
Fig. to add one’s comments or opinion, even if unwanted or unasked for. • You don’t need to put your oar in. I don’t need your advice. • I’m sorry. I shouldn’t have stuck my oar in when you were arguing with your wife. • Do you mind if I put in my oar? I have a suggestion. • There is no need for you to put in your two cents’ worth.
McGrawhill's American Idioms And Phrasal Verbs