Diamondz- (Die-Mond-s) Adj. A super smooth or perfectly executed trick. "Man that kickflip was diamondz."
Smooth- (Smoo-th) Adj. A trick that is performed above normal standards, but not quite diamondz. "Man, that nooseslide was smooth."
Sketchy- (Sket-chee) Adj. A trick that needs some work, or looked not so nice. "Man that boardslide was sketchy."
Man, we're learning. A good start is to begin every sentence with man. So, we've got that down.