Use it as the reply to the interruption in your skit, then follow it with Bruh for a deadpan reaction and Emotional Damage when the scolding gets worse, keeping the mom moment as the setup for the bigger joke.
关于此声音
This is a short spoken outburst lasting just under three seconds, with a voice snapping the words shut up mom in an exasperated tone. It feels cheeky, bratty and instantly funny, like a frustrated reply caught at the worst possible moment. The blunt delivery makes it land as a playful shut-down rather than a serious argument.