Speak it!

Speak it!

You said it! That is exactly right! Preach! A: "And that's why all of us are unhappy with the way you've been managing the company!" B: "Yeah, speak it, Jack! Let them know what we think of them!" We were watching her talk on women in the workplace, and my friends and I were all shouting, "Speak it, sister!"
See also: speak
Farlex Dictionary of Idioms.

Speak it!

exclam. Say it!; You said it!; That’s telling them! Speak it, girlfriend! Tell him off!
See also: speak
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • have the mulligrubs
  • have the mullygrubs
  • jaw at
  • jaw at (one)
  • het
  • gizzard
  • grumble in the gizzard
  • disgusted at (someone or something)
  • disgusted with
  • disgusted with (someone or something)
References in periodicals archive
However, when I asked around about other students' experience studying it, I found out that many had graduated still not able to speak it!
I did Mandarin - I don't think any of the other boys speak it!" But it is not just his language skills that set Sammut apart.
And, instead of needing desperately to downplay the existence of our national language, we might find that a reasonable proportion of these new graduates could actually speak it!
Maybe we should abolish the language here and in 100 years everybody in Ireland will want to speak it!
'It's coming along to a point but then I get really shy and can't speak it!