mosh call

plural mosh calls

1. A shouted cue or musical prompt given by a performer, typically in hardcore or metal performances, intended to incite or signal the start of moshing among the audience.

   1 more example

   It’s a glorious pact between band and audience to go hard as balls, and for me, no moment better embodies this utopian pursuit than the 'mosh call.' This is the part of the song where the frenzied riffing comes to a head and a space emerges for the vocalist to intelligibly say something an audience will agree upon as badass right before a suuuuuuuper heavy breakdown. ... often some variation on 'FUCK YOU, ASSHOLE'

   2022 April 16, Towers, Julian, The Austin Chronicle