Thanks to Jenkem:
In rhetoric, chiasmus or, less commonly, chiasm (Latin term from Greek χίασμα, "crossing", from the Greek χιάζω, chiázō, "to shape like the letter Χ") is a "reversal of grammatical structures in successive phrases or clauses – but no repetition of words".
In the part you can see it on 9:47.
And after it goes like this:
50-50 -> Nollie Fs Heel 50 180
Nollie Croock -> Nollie Fs Flip 50 180
Nose Grind 180 -> Fakie Bs Flip Nose Grind 180
Nollie 180 5-0 -> Nolle Bs 180 50 180
Fakie Flip 50 180 - > Nose Grind 180
Sw Bs Flip 50 180 -> Fakie Croock
Nollie Bs Heel 50 180 -> 5050