The act of engaging
two woman sexually when one of them positions herself on the
mans face and the other places herself on his
penis and they ride up and down on him in this way in an alternating rhythm giving the appearance of riding a see-saw.
"Hey man, why are you walking like that?"
"My back's a bit sore. Last night my girlfriends
sister came over, we all got drunk and one thing lead to another and..."
"And?"
"They took a wild ride on the she-saw!"
"You'
re going to
Hell when you die, you know that, right?"
"Totally worth it!"
