Definitions by Ellingsworth, Conroy, Hagerty, Mangini, Procito

PMing it up 

the act of jerking off in class; usually by cutting a slot in your sweatshirt pockets. AKA: pocket pool.

Gibson was PMing it up in tech class today during third period.

PMing it up by Ellingsworth, Conroy, Hagerty, Mangini, Procito May 17, 2006