bite the dust (informal)
to fail or to stop existing
Three hundred more people lost their jobs in the same region when another firm bit the dust.
She can't make it on Saturday? Oh, well, another good idea bites the dust!
(humorous) to die
Two Hollywood stars of the thirties have recently bitten the dust.
kick the bucket (informal)
Didn't you hear? He kicked the bucket. Had a heart attack, I think.
Hope that helps.
- For Teachers