Like motor boating but to a nut sack. When a man puts their lips and places then in between two testicles and blows with tight lips soaked in saliva while shaking their head back and forth in a quick-like motion. The effect is the sound somewhat similar to a motor boat.
Mike: check out that nut-meal.
Aaron: motor broating that all morning long and probably late into the night sounds like fun. If my lips are a boat then I have a full tank of gas.