• to be on one's last legs
• to hammer, to knock into a cocked hat, to rout, to thrash
• to become bankrupt, to bung, to bust, to bust up, to fold up, to go broke, to go bust, to go on the fritz, to go phut, to go pop, to go smash, to go to pot, to go to rack a ruin, to go to ruin, to go to the devil, to go to the dogs, to smash, to spoil, spoilt
• he's dead and done for, ruined, sunk, to be bust, to be busted, to be on the fritz, undone
• to batter, to blast, to bring to ruin, to bust, to crash, to craze, to cripple, to disorder, to do for, to do up, to mar, to perish, to ravage, to ruin, to spoil, spoilt, to undo, undid, undone, to unmake, unmade, to vandalize, to wreck
• crash, doom, ruin, smash, wrack, wreck, wrecking
• to break sy, to cook sy's goose, to give sy a trouncing
• to chew sg up, to play havoc with sg, to play the devil with sg, to shit sg up