The sexual act of lying down on your back with an erection, and having a little person sit on your dick (vaginally or anally). They then lift their legs up, you grab them by the sides, and spin them around super quickly like a Beyblade.
Example
Person 1: Man, I'm feeling so relaxed. Got a three foot tall hooker last night and gave her a Midget Spinner.
No spine animal, or無脊椎動物in chinese, is a phrase used by John Mak in LSC to tell others they have a curved sitting posture. People getting told they are No spine animal might find it annoying, other students will laugh although they have no idea what is No spine animal.
Student A: sits in a poor posture Mak: You are 無脊椎動物!!
Students: Ha ha!
Someone who will "break their parents' backs" in order to keep up withexpensive trends. They hound their parents to buy them trendy clothing/items in order to keep a high social status or in other words, make them look wealthy.
Yoongi: Did you hear that Jungkook has a new expensive jacket?
Jimin: Yes, his mother's money has gone down the drain for it.
Yoongi: Jungkook is such a spine breaker.
Porking someone really, really aggressively in the arse. So much so that one could easily imagine the vertebrae in their spine being crushed making a rather pleasant warm feeling in my trousers... I mean a crunching sound in their spine. Sorry.
Down at the beach (probably alone), "Jesus! Look at how smooth her skin is. The one in the green bikini. I'd like to spine crunch her good and proper. Yeah, 'cos women are things."