3 goals by one person

(184)
3 goals in a row

(19)
I don't know anything about ice hockey

(19)
3 goals in one period

(15)
Hiding the puck under your hat and sneaking it into the net

(8)
Throwing an octopus onto the ice

(8)
Slamming a player into the boards so hard it makes their hat come off

(7)
It's like 3 card monte, except using hats

(7)
Faking the direction you're going to go with your hat, then going the opposite way

(6)
Stealing someone's hat while they're buying beer

(3)
Knocking out the goal keeper.

(1)
It's like the infield fly rule in baseball, only for hockey
Pushing the net out of position if the other team is about to score