When an erection causes severe head pains due to loss of blood from the head. Usually caused by abnormally large penises.

A type of excruciating pain affecting the entire head for several hours after listening to a selection of tracks from the derivative Canadian schlock-rock band, Nickelback.

Note: The headache can develop into a full bodyache if the person continues to subject himself to aural torture.

Possible side effects include: shopping at Wal-Mart, driving a Hummer or pickup track, loss of vision, loss of sex drive, alcoholism, and a possible desire to listen to the same song over and over and over again.

The headache that occurs when a large amount of axe deoderant is sprayed in the vicinity of other people.

A feeling that a child may get in school in which they feel bored in the classroom, therefore getting a headache.

n. A headache acquired after eating some form of cooked food particularly fast.

When Facebook gives you a headache that only goes away when you close the browser/screen.

The painful headache you get when you are working on math for too long. Usually occurs while cramming before a test, making up half a semester's worth the homework or can also occur while completing a BYU online math course.