To have sex with a ghost. Either by them passing through you and stimulating your senses, them taking physical form and interacting or by possessing another for the purpose of sex. Usually the first. Skelping is easiest at certain times of the year and the day.
Skelpful: adj. skelp-ful. To be helpful in a way that is creepy or hints that the person is sketchy or of questionable character. Verb: to skelp, skelp, skelping.
When the salesman explained the pluses and minuses of of different tablets, and how each affected their retail value on ebay, Allison thought he was quite skelpful.
