predecease
postdecease
take a dirt nap
pass on
pay the debt of nature
keel over
go belly-up
pass the river
meet one's end
fall off one's perch
turn up one's toes
go the way of all the earth
pass away
cash in
drop off the hooks
cash in one's chips
draw one's last breath
bite the biscuit
go out
demise
hand in one's dinner pail
peg out
pass in one's checks
go
cross the Styx
bite the big one
check out
bite the dust
croak
cark it
meet one's doom
depart
pass
peg it
pop one's clogs
expire
slip one's wind
sputter out
quell
suck the kumara
turn to dust
flatline
kick
querk
go to sleep
kick the bucket
cock one's toes
buy it
succumb
toddle off