1
general::
Die, as in All of my goldfish kicked the bucket while we were on vacation. This moderately impolite usage has a disputed origin. Some say it refers to committing suicide by hanging, in which one stands on a bucket, fastens a rope around one's neck, and kicks the bucket away. A more likely origin is the use of bucket in the sense of "a beam from which something may be suspended"; because pigs were suspended by their heels from such beams after being slaughtered, the term kick the bucket came to mean "to die." [Colloquial; late 1700s]
American Heritage Idioms
2
general::
Phrase(s): kick the bucket
Go to kick off.
McGrawhill's American Idioms And Phrasal Verbs