Bought The Farm
Passed away. Expired.  Vacated this worldly plain.  Snuffed it.
Also Throw a seven
Mrs Tiggywinkle?  It's PC Bobs, here.  I'm afraid I have some upsetting news. Your husband was crossing the M4 and, well I'm afraid he bought the farm.  Squashed flatter than a witch's tit. He was.
We scraped Him up as best we could.  He's in this bucket.  I shouldn't look if I were you.  