That&#x27;s called a &quot;duck&quot;<p><a href="http:&#x2F;&#x2F;blog.codinghorror.com&#x2F;new-programming-jargon&#x2F;" rel="nofollow">http:&#x2F;&#x2F;blog.codinghorror.com&#x2F;new-programming-jargon&#x2F;</a>