(noun) The mischievous sexual act of a male ejaculating on to a woman's face while it is covered with her own hair, thus creating the image of a hairy ghost. A move best utilized when the woman does not want or expect it.
My boyfriend just gave me a hairy casper...thats the fifth time I'll have to shower today.
My boyfriend thought the salon gave me a cheap dye job so he gave me a hairy casper.
I ran out of hair gel, so i got my boyfriend to give me a hairy casper.
She escaped from my alligator fuckhouse, so i had to punish her with the hairy casper.
My girl tried to scream, but since i had just given her the hairy casper, all i heard were the bubbles.