a thing that becomes terrifying or destructive to its maker
Frankenstein was the title of a novel written in 1818 by Mary Shelley. The scientist Frankenstein creates and brings to life a manlike monster which eventually turns on him and destroys him. Frankenstein is not the name of the monster itself as is often assumed.
1991 - John Kingdom - Local Government & Politics in Britain - The factories of the bourgeoisie had created another dangerous by-product – a Frankenstein's monster posing a constant sense of threat - the working class.