Muttley does not really talk; his main examples of speech are his trademark snicker - a wheezing smoker's laugh (usually made at Dick's expense) - and a mushy, sotto voce grumble against an unsympathetic or harsh Dick (usually along the lines of "Sassafrassarassum Rick Rastardly!"). Muttley also hates bad remarks about him as seen when Dastardly calls him dumb or an idiot as he bites his hand or gritted him angrily to make his owner calm him down.