If you look very closely this shirt says:

What the darn-diddily-doodily did you just say about me, you little witcharooney? I’ll have you know I graduated top of my class at Springfield Bible College, and I’ve been involved in numerous secret mission trips in Capital City, and I have over 300 confirmed baptisms. I am trained in the Old Testament and I’m the top converter in the entire church mission group. You are nothing to me but just another heathen. I will cast your sins out with precision the likes of which has never been seen before in Heaven, mark my diddily-iddilly words. You think you can get away with saying that blasphemy