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An instrument used typically by marching instructors that is made out of plastic or synthetic woods. The gock block is hit in order to establish or keep a tempo for musicians to march or play to. Also referred to as met or metronome.
Student 1: Bro, where's the met clicky thingy?
Student 2: You mean the gock block? I think it's in the director's office.
by JFC420 September 27, 2015
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a term typically used by major band geeks, when the gock is stolen from the drum line by the drum majors
Dude, you totally just got gock blocked!
by el93 August 19, 2010
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