1.When a one soccer(football in Brittish English) or hockey player scores 3 goals in a single game(related to a similarly name feat in cricket, probably a reference to the magic trick of pulling a rabbit out of a hat)
2.any improbable accomplishment
by The Return of Light Joker May 01, 2008
by somerandomperson1 July 01, 2010
by johnnyb3good November 30, 2016
by TwoPiece November 14, 2016
by BigSexy22 April 02, 2008
Chris Farley died performing a hat trick.
by shitforbrains2 September 05, 2008