What does Alaskan Wondersled mean?

Alaskan Wondersled meaning in Urban Dictionary

The work is made from participating in sexual activity in "doggy-style" position towards the top of a snow covered hill. Just prior to climax, a man will join from the female's back with these types of force your both events will go to slide along the mountain due to the fact guy busts a nut right at the rear of their lover's head.