When a man ejaculates inside a female partner during a missionary position, then immediately transitions into a sixty-nine until he can form another erection; repeat.
You must be from Seattle if you'renasty enough to do a Seattle Spin Cycle.
When a girl is sitting on top getting anal, and she she tucks in her legs and, potentially with assistance from the man underneath, spins around, doing a complete 360 with the dick still inside her.
Man, that girl last night was wild! She was doing dirt spins all night long!
When something good is happening, and then, without plan or expectation, something also really good happens as a result.
It's from Jeopardy or Wheel of Fortuneor something
Dude, you won't believe it- first Zac got me into this epic rave for free and then BONUS SPIN, he got us backstage passes and we got to hang out with the headliner. The stoke was so high.