1. When one's hair sticks up. Common examples include the "bed head" look, or when a one has short hair and uses pomade to have it stick up in the front.
2. That chunk of hair you just can't get to lie flat in the morning.
1. "John has such a cute hairection. It really defines his face."
2. "When I woke up this morning, I had such a bad hairection I practically had to use a whole bottle of gel just to get it to lie flat.
Any of a number hairstyles including the mohawk and faux-hawk where the hair is styled in a vertically erect grouping.
Hey you got your hairection at magic cuts.