Spinning Jenny was derived from the cotton gen which was made by a black man in the industrial revolution. This new usage for Spinnig Jenny refers to making money.
Man 1: Homie you stackin major scrilla.
Man 2: That's 'cause I stay on the grind and I stay spinning jenny.
Ok so a guy and a girl both spin around with their heads on baseball bats till they get really dizzy like that relay race called dizzy izzy. then they try and have sex. good luck getting it in the right hole
"Dude i pulled a spinning jenny on that chick last night and my dick ended up in her nose."