PEAS, TO SOME CLASSROOM PRANKSTERS is an acronym for the phrase 'Pranks, Explosives, and Stink bombs'. This phrase is commonly used by students who are looking to pull pranks in their classrooms. The crossword solution for this term is AMMO, which stands for ammunition. Ammunition is a term used to describe any type of explosive device or material that can be used to create a loud noise or cause destruction.