A sexual act performed by 2 persons, one person is to lay on the ground with their knees near their head and their anus facing upwards towards the ceiling. The second person progresses to place their anus over person 1, in a scissor like affect. Then person one proceeds to rock their body backwards and forwards, making a rocking motion with their anus, during this process they are also defecating. The faeces from this action is being pressed between the two people, causing the faeces to spread between them, giving a rough "sandy" effect to the friction amongst the people.san
"Jeez that Sandy Rocking Chair yesterday sure made a mess"

"The Sandy Rocking Chair is my favorite after a long day"
by MuntedRandy August 14, 2016
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When you on the beach and she wants to have you deep throat her while she sitting down. Gotta hit her with that Sandy rocking chair, cause she gonna be rocking that head back and forth if you catch my drift
Bitch yeah get that shit, girl you so good at doing the sandy rocking chair
by SANDY ROCKING CHAIR July 21, 2017
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