take the biscuit
have the biscuit
have one foot in the grave
do for
push up daisies
close one's eyes for the last time
kill
knock on heaven's door
have had it
have had one's chips
batwing
eat it
run out
lose the number of one's mess
devive
conk out
do away with
return to dust
fall asleep
transmigrate
dismay
bereave
forthfare
fall off one's perch
pass in one's checks
querk
meet one's end
flatline
euth
meet one's doom
pass the river
peg it
keel over
hand in one's checks
sputter out
go out
quell
cross the Styx
drop off the hooks
hand in one's dinner pail
join the choir invisible
pay the debt of nature
depart
euthanatize
go home
succumb
die
go the way of all the earth
bite the big one
cash in one's chips