used to talk about something that someone creates or invents that goes out of control and becomes dangerous, often destroying the person who created it The organization has now become a Frankenstein monster beyond the control of the people who created it. If you were going to do a Frankenstein and put a swimmer together from scratch, you would build Michael Phelps. Can genetic engineering shake off its Frankenstein image? From the novel Frankenstein by Mary Shelley in which a scientist called Frankenstein makes a creature from pieces of dead bodies and brings it to life.
See Frankenstein in the Oxford Advanced Learner's Dictionary
