put two cents in

put your two cents in

also put in your two cents
to give your opinion She believes it's her duty to vote and put her two cents in.
See also: cent, put, two

put your two cents (worth) in

  (American & Australian informal)
to give your opinion in a conversation, often when it is not wanted She always has to put her two cents worth in! Why can't she just keep quiet?
See also: cent, put, two