have one foot in the grave
kill
close one's eyes for the last time
demise
exit
kick
bite the big one
suck the kumara
go
go belly-up
hand in one's checks
toddle off
expire
depart
draw one's last breath
quell
go home
buy it
join the choir invisible
keel over
bite the biscuit
bite the dust
meet one's end
pass the river
peg it
hand in one's dinner pail
peg out
pop one's clogs
croak
cock one's toes
lose the number of one's mess
cash in
drop off the hooks
querk
pass away
slip one's wind
kick the bucket
flatline
cark it
cross the Styx
cash in one's chips
check out
pass in one's checks
sputter out
succumb
take a dirt nap
fall off one's perch
go the way of all the earth
pay the debt of nature
meet one's doom