Juggernaut

A large, overpowering, destructive force or object of any kind dates in this sense from the 1600s. The word derives from the Hindi Jagganath, the idol of Krishna that is drawn on a huge wagon at Puri in Orissa, India, under which fanatical devotees are said to have thrown themselves to be crushed. The monstrous wagon caught the eye of the British and that is why the word was applied to huge vehicles, ships, etc. from the mid-19th century onwards. Nowadays, it is even applied to powerful, dominating sporting teams, in football, rugby, etc.