Answer: Metaphor
Explanation:
A metaphor is a comparison literary device that refers to something as another thing to highlight that they are similar in a certain manner. This is much like a simile but does not use the words, "as" or "like".
In this sentence, Big Daddy is referred to as a "Truck-Drivin' Man" to highlight that he shares some similarities to a truck driving man thereby making it a metaphor.
