Tazzers is a word that a small group of Scotsmen started shouting one day while playing Car Soccer. It's kind of like most things that one shouts during a particularly intense round of sports: born from intense excitement, only making sense in that one thrilling moment. Combined with Scottish brogue, and that deepset Scottish appreciation for the thrill of soccer, and it's especially esoteric.
Scotsman 1: *does an impression of an Englishman with a deep appreciation for celestial bodies, distracting him from his goalkeeping duties*
Scotsman 2: BEN! GIT TAE FECK!
Scotsman 3: Oh, Tazzers!