When a man puts circular foods (donut, bagel, pineapple, etc...) around his erect penis forming the appearance of a kebab. Then a partner consumes the food off of his shaft until it is all eaten.

when you're hungover as shit after a spending a night drunk as a skunk

A dirty kebab is a donner kebab meal you get from a takeaway and eat as you have a long walk home from the sesh