pfrey was invited to a richard simmons aerobics class; little did he know that richard simmons planned to buttgrind him
a sensual maneuver which required the male participant to stand behind the female (or male lol) subject, maintaining constant contact between the the pelvis and the buttocks
"pfrey was invited to a richard simmons aerobics class; little did he know that richard simmons planned to buttgrind him" What is the definition of "buttgrind"?