Revealing mistake: In every episode, the windows in both the kitchen and living room areas never reveal any scenery outside them during the day or any reflections from the inside at night.
Continuity mistake: In many episodes throughout the series, whatever is written on the blackboard behind a teacher in a classroom always changes many times in different shots. Some words or pictures appear or disappear or change shape, features, etc.
Answer: "Mack Daddy" was a 90s phrase meaning "Ladies man," and Mack simply doesn't like the stupid nickname.
Brian Katcher