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.
"I was driving, on my way to work, but I had to pull over and call in sick...another damn Nickelback headache..."
"At first, I thought that Staind was playing, but by the time I realized my error, it was too late, the intense throbbing and anal leakage had already begun"
The headache that occurs when a large amount of axe deoderant is sprayed in the vicinity of other people.
Matt: Dude I hate changing for gym. That fat smelly kid always sprays himself with a whole bottle of axe. My head always starts to pound.
Dave: Man you got that axe headache bro.
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.
I've been working on the BYU course now for three hours straight. What has algebra done for me besides give me a massive math headache?