Final answer:
In the book 'Truth as Told by Mason Buttle', Matt Drinker's mom calls her son 'Mattie', which is a term of endearment.
Step-by-step explanation:
The subject of the question pertains to a character's name used in the book Truth as Told by Mason Buttle. In the novel, Matt Drinker's mom refers to her son as 'Mattie'. This term of endearment is used throughout the text and gives insight into her relationship with Matt, showing a mother's affection towards her child. Understanding how characters address each other can provide deeper meaning to their relationships and personalities within the narrative.