The feeling you get when youre over tired or havent eaten in a while. You get punchy, hyper, goofy, and giggly because your body begins to run off of its natural and reserved sugars
When someone is sure that they aren't receiving their mail because everyone who walks by is a thief, as well as inferring that the mailman is incompetent and lazy. Thia leads to checking the mailbox every 15 minutes, with a bunch of whining about the check he is expecting,