I had to squelch my urge to laugh when the child told a serious story.

Squelch is something used in telecommunications, squelch is a circuit function that acts to suppress the audio (or video) output of a receiver in the absence of a sufficiently strong desired input signal. For instance if you turn the squelch up on a radio you can cut out the noise but if someone transmits they will pass the squelch threshold and be heard.

I have an answer,The squelch on my Citizen Band radio is set to high.

The cast of Squelch - 2013 includes: Blake Elliot as Squelch Red Elric as Casey Kerr Seth Lordygan as Razor

Someone in the squad let a squeal when they began to squelch in the mud.