to the wall
to the wall {adv. phr.}
Into a place from which there is no escape; into a trap or corner. — Usually used after "drive" or a similar word.
John's failing the last test drove him to the wall.
The score was 12—12 in the last minute of play, but a touchdown forced the visitors to the wall.
Bill had to sell his five Great Danes. The high cost of feeding them was driving him to the wall.
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Source: A Dictionary of American Idioms
