have one foot in the grave
knock on heaven's door
have had it
knocking on heaven's door
on one's deathbed
croak
draw one's last breath
sputter out
take a dirt nap
keel over
cash in
pay the debt of nature
check out
bite the dust
join the choir invisible
pass
peg it
querk
buy it
meet one's doom
pass away
suck the kumara
turn to dust
cark it
depart
peg out
slip one's wind
meet one's end
bite the biscuit
pass on
succumb
kick
quell
drop off the hooks
pop one's clogs
turn up one's toes
flatline
demise
go the way of all the earth
kick the bucket
hand in one's checks
expire
pass in one's checks
go out
cross the Styx
cop one's whack
hand in one's dinner pail
pass the river
fall off one's perch
go home
cash in one's chips
go
go to sleep
bite the big one
toddle off
go belly-up
cock one's toes
snuff it
return to dust
deathwards
close one's eyes for the last time
conk out
push up daisies
transition
passing
dying
moribund
sleep
deathward
meet one's maker
mortally
eat it
with one's last breath
deathly
euthanatize
euth
help along
terminally
kill
in extremis
on the way out
way of all flesh
celestial transfer
one's number is up
in articulo mortis
near-death experience
big sleep
doom
check-out time
last roundup
expiry
end
fatality
curtain