When your body experiences the negative side effects of being high without the pleasurable mental symptoms the morning after a smoke. They include but are not limited to squinty eyes, headache, laziness, sleepiness, and lack of motivation. The only known cure is to smoke more marijuana. It returns the brain to the same state it is in when the body usually suffers these symptoms. Other treatment options include a shower, pain reliever, and eye drops.
I wish I hadn't smoked so much last night; I was way too high to do anything, and now I have nothing to get rid of this weed hangover!