dirty costner 

Having a wank while harassing a masseuse.

She didn't do "extras" so I had a dirty costner instead.

dirty costner by stuart fraser May 30, 2006

dirty kevin costner 

the act of forcibly submerging a sexual partner's head in a used public toilet and using a billy club to ensure they can't come up for air whilst violently reaming them up the pooper.

See "No Way Out" or the Director's Cut of "Field of Dreams" to see a dirty kevin costner in action

dirty kevin costner by Jon March June 13, 2006