thanatosis
kill
way of all flesh
necrophilia
deeeath
Paraguay tea
predecease
knocking on heaven's door
thanatogenetic
vitally challenged
fatal
deadly
ob.
deathward
thanatology
ND
Death
corpsehood
article of death
go belly-up
buy it
thanatoid
flatline
bite the biscuit
stiff
bite the dust
cop one's whack
cross the Styx
cash in one's chips
cark it
bite the big one
cock one's toes
draw one's last breath
fall off one's perch
depart
drop off the hooks
croak
go the way of all the earth
go out
check out
expire
go
go home
cash in