To deceptively inflate one's resume or job prospects during an interview and then be publicly called out and utterly fail. Usually involved in investment banking roles or other business positions.
I heard that guy cured cancer while running a 5k marathon and pitching coal futures to Soros. Too bad he got chiangged and is now a hobo.
Originally from the recent "Jeffrey Chiang" Saga on Wall Street
to chiang: to make false and outrageous claims about one's achievements and skills to get a job in investment banking.
"How did you get that job, dude?"
"I totally chianged my resume, bro!"