Captain Underpants and the Perilous Plot of Professor Poopypants

This book is the 3rd funniest I've read so far by Dav Pilkey.

It is about a bad mad Scientist named (well he wasn't bad at first, actually) Professor Pippy P. Poopypants.

I especially liked the flip-o-rama, that was the funniest part of the book. And it began when Professor Poopypants come when George and Harold do another prank. They attempted to turn the teachers into snowmen by using styrofoam wormy things, and powderded paste. They sprayed the teachers with water.

I won't tell you what the P in his middle name stands for, you'll have to read the book!