noise-alert
What you say to others in your vicinity prior to making a loud/shrill sound with the equipment you're working with; the purpose is to avoid startling them by verbally notifying them of the impending noise so that they can momentarily "brace themselves in expectation", plus it gives them a chance to either cover their ears or move further away if they wish.
Tire-shop employee, preparing to re-seat a tire-bead onto the rim: Okay, everybody --- noise-alert! (Tire pops deafeningly but nobody jumps, then they all placidly resume their light conversations while waiting for the wheel to finish being prepared.)
noise-alert by QuacksO October 13, 2018
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