disquote 

A purposefully fake or distorted quote attributed to a person with the intent to deceive.

"MtGox is ready to reimburse your Bitcoin with Magic the Gathering trading cards" - disquoted MtGoX guy

"I am actually a Kremlin operative agent under the codename 'snowed in'" - disquoted Edward Snowden

"Looking back, I would never have written 'Mein Kampf' if I wasn't a vegetarian" - take a guess

disquote by thePostFuturist April 15, 2014

dysquote 

v.t., To rephrase a fact-based observation with the specific intent of discrediting its original source, potentially creating or prolonging a hostile work environment in said source's name.

I won't bring Marge up for creating a hostile work environment; had it been her dysquoted regarding my skills I'd be pretty pissed off too.

dysquote by Zappin' Nap July 12, 2023