When you have sex high in the mountains especially in the open on the ground, such as in the mud. It has also been used to reference anal sex in the mountains as well. It was originally used in the rocky mountains but has been adapted as a more loose term for the act.
We went up into the mountains to get some rocky mud.
Commencing in intense intercourse after both parties have shit on the bed and proceed to fuck in onceโs feces.
Me and the boys are going to go Rocky Mountain Mud Wrestling after school.
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