bite the dust break break up canker carry away cave in collapse come apart come off come undone come unstuck conk out corrupt crack crack up crumble crumble into dust crumble to dust decay decline decompose disintegrate droop drop fade fail faint fall fall into decay fall off fall to pieces fester fizzle out flag flip fly apart gangrene get loose give out give way go bad go downhill go haywire go into hysterics go soft hit the skids languish lose courage lose self-control mildew mold molder mortify necrose peel off peg out peter out pine poop out putrefy putresce rankle rot sink sphacelate spoil spring apart start suppurate topple tumble unravel weaken wear away wear thin wilt yield