Top definition
Something said in response to a quote or phrase when a sermon or a lecture can easily be made from it and it be accurate to scripture or text. Usually said in church when someone agrees with something the preacher says.
Man 1: "True humility is not thinking less of yourself; it is thinking of yourself less."

Man 2: "Amen! That'll preach!"
by Archer Thornwood. July 06, 2018
Get the mug
Get a That'll preach! mug for your mate Larisa.