martyr
conk out
return to dust
snuff it
cop one's whack
turn to dust
flatline
pop one's clogs
demise
go out
quell
pay the debt of nature
querk
depart
hand in one's checks
hand in one's dinner pail
pass
suck the kumara
turn up one's toes
go home
slip one's wind
peg it
draw one's last breath
meet one's end
bite the biscuit
eat it
bite the dust
croak
peg out
expire
cark it
go
meet one's doom
drop off the hooks
cash in one's chips
pass away
cross the Styx
keel over
take a dirt nap
succumb
check out
buy it
go the way of all the earth
join the choir invisible
pass in one's checks
pass on
sputter out
toddle off
kick the bucket
go to sleep