The PDF highlights a crucial problem: sarcasm doesn't translate to text. The book’s solution? Invent a "Sarcastic Period"—a backwards period or an interrobang (‽). Since your keyboard doesn't have that, use the PDF’s definitions as a preface: "Per the Official Dictionary, 'Great job' actually means..."
Napoli’s work underscores that sarcasm is more than just saying the opposite of what one means; it is heavily dependent on specific linguistic and social cues: the official dictionary of sarcasm pdf