The trick that took me the longest to learn was...

so far it’s suicide. i think i’ve landed it twice after 3 months so far of tryin it. but i’ve only been throwing for 5 months and my best tricks are kwijibo and pop n’ fresh. i can still only get boingy boing on my code2.

does it count if I still don’t know it?
If so, sea sick…
if we have to know it already, I’d say rancid milk.