&quot;Muletillas&quot; is just the Spanish word for the general linguistic phenomenon of fillers. Both &quot;muletillas&quot; and &quot;fillers&quot; mean the sam thing and serve the same purpose, for example to inform your listener that you&#x27;re still thinking and forming a sentence, that you are not done.<p>Now I want to read this book about fillers that I just stumbled upon:<p><a href="https:&#x2F;&#x2F;benjamins.com&#x2F;#catalog&#x2F;books&#x2F;tsl.93&#x2F;main" rel="nofollow">https:&#x2F;&#x2F;benjamins.com&#x2F;#catalog&#x2F;books&#x2F;tsl.93&#x2F;main</a>