put one's money on a scratched horse

put one's money on a scratched horse  {v. phr.},  {informal}
To bet on a certain failure; to gamble without a chance of winning.
You bet on the New York Mets to win the World Series? Why put your money on a scratched horse?
Compare: STACK THE CARDS.
Categories: informal money verb world

'put one's money on a scratched horse' on video