Say your piece
Definition 1 of 1
Pro Tip 1/3Invited Expression
Use 'say your piece' when someone is given a clear chance to express their thoughts without interruption. 
After everyone else spoke, I was finally able to say my piece.
Pro Tip 2/3Personal Views
It often implies sharing personal views, potentially after holding them back for some time. 
Once the argument settled down, she said her piece about the issue.
Pro Tip 3/3Complete Thoughts
Ensures that one can complete their thoughts or opinions before being countered or stopped. 
I just need to say my piece, and then you can respond.