say one's piece

say one's piece (third-person singular simple present says one's piece, present participle saying one's piece, simple past and past participle said one's piece)

1. To say all that one has to say about a matter; to state one's opinion or position fully.
   • 1987, Grateful Dead (lyrics and music), “Touch of Grey”, in In the Dark:

     I see you've got your list out / Say your piece and get out / Guess I get the gist of it, but / It's alright