Definition of "shouty"

In A League of Their Own (1992), as the shouty baseball coach to an all-girls team, he's once again a curmudgeonly but lovable mentor figure.

2021 February 9, Christina Newland, “Is Tom Hanks part of a dying breed of genuine movie stars?”, in BBC‎

That is the key - understanding the issues and saying things that accurately reflect the passengers' insight, rather than being just another of the shouty voices from the sidelines.

2023 June 28, Anthony Smith talks to Paul Clifton, “The industry has to go back to basics”, in RAIL, number 986, pages 39–40