Musking

1.(verb)To be considered a genius in a specific field or science while simultaneously being oblivious to the perceptions of one’s peers as being an idiot in other fields and or sciences.

2.To be considered by others to be of superior intellect while having a propensity to make decisions, use language, and or commit actions considered foolish by one’s peers and or the public.

(proper)

Dr. Peters is musking if he thinks anyone supports his flat Earth theories.

(slang)
Dr. Peters was muskin it during his speech on the validity of flat Earth theory.