Third-person singular simple present indicative form of muffle.(verb)
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Use "muffles" in a sentence
"You get a 200-mile-deep earthquake it kind of muffles itself."
"The place was empty except for some scant few persons grouped about a stage whereon two fellows, naked to the waist, their fists swathed in what I believe are termed 'muffles', dodged and ducked, feinted or smote each other with great spirit and gusto until one of them, reeling from a flush hit, sat down with sudden violence and remained in this posture to blink and get his breath."
"It went on and on, the tweets getting meaner and nastier, amplifying the frustration that would otherwise amount to quiet muffles and the slight shaking of a car to the outside world."