a notable illustration of (emphasized).
The actor was one sharp mouthed troublemaker.
Added with delicate prose to the end of a statement, implying there are two choices (the two choices are readily available in the sentence- so more of a way to drive home the awesomeness or disgust of its subject)
Picture Uncle Billy & Grandpa speaking:
“Billy Bob, where’s ya’lls mama??”
“At the Walmart in Stinesville or Bloomington, one.”
goodbye to someone in which you mean to say, 2 people becoming 1.
see you later baby, one!