The feeling of wanting something to grub on to avoid doing something else of more importance. The feeling is compulsive and often occurs at a time when you aren't even hungry.
Bitch Ass Chemistry Teacher: Where's your homework? Me: All Sunday I was planning on working on it, but I got the Procrastinatory Munchies and ended up not doing anything. Bitch Ass Chemistry Teacher: That would most likely explain your overall surface area..... Me: Did you just call me a lardass in smart guy language?!! At least I didn't spend my weekend procrasterbating like some bitch ass chemistry teacher I know.