squelch (skw?lch)v. squelched, squelch·ing, squelch·es v.tr.1. To subdue forcibly: squelch a revolt.2. To inhibit or suppress: squelch a rumor; squelch one’s anger.3. Archaic To crush by trampling.v.intr. To produce a splashing, squishing, or sucking sound, as when walking through ooze.n.1. A squishing sound.2. An electric circuit that cuts off a radio receiver when the signal is too weak for reception of anything but noise.[Probably imitative.]squelch?er n.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.