Coach Carter (Br)

1) A Christian who says caustic things about his own religion, things that may hurt, but need to be said.

2) A Christian who is caustic toward non-Christians in his defense of Christianity.

In other words, a caustic Christian is someone who is a bit abrasive toward Christian and non-Christian alike. A caustic Christian is an equal-opportunity offender. He defends Christianity against all attackers in one breath, then in the next, turns and attacks it himself. All while being saved by grace through faith in Christ. Hallelujah and amen.

This books is a collection of religious-themed essays by just such a person.