A grumpy sound guy is a live event audio engineer who has been plagued by ridiculous situations and silly questions over the years so he finally puts up a false front face that he is really angry so people will avoid interaction with him so he can just do his job. The epitome of a grumpy sound guy is someone like Mike Toth of Arizona who has mastered this feature.

Please remember that the sound guy doesn't know where the bathroom is, what time your child's choir is performing at another stage, or when the next show is.
That Mike Toth is just a grumpy sound guy...unless you know him personally.
by Notorious Chicka May 25, 2019
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