I'm thinking of a definition like this:
v. Insincerely acting out or pretending at a set of actions and/or beliefs, often for comedic effect, with such vigor and frequency that the actions or beliefs become habitual and are eventually indistinguishable from one's sincere behavior
e.g. "I swear I was only doing it ironically, but people kept telling me I was ________"
The closest I can think of is "invoking Poe's Law", but Poe's Law is specific to the internet and I'm looking for a single word if possible.