Definitions by JFC420

gock block 

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.

gock block by JFC420 September 27, 2015