KMS
take one's own life
suicide
self-annihilation
self-destruction
self-kill
commit suicide
self-killing
felo-de-se
autodarwinate
catch the bus
go for a burton
pass the river
cark it
hand in one's dinner pail
top
go out
keel over
cash in
kevork
succumb
end it all
bite the big one
end one's life
meet one's doom
take a dirt nap
go the way of all the earth
pass away
cross the Styx
querk
peg it
pass on
join the choir invisible
kick
an hero
demise
go to sleep
cop one's whack
flatline
bite the dust
cash in one's chips
bite the biscuit
go
draw one's last breath
expire
croak
fall off one's perch
self-destruct
top oneself
turn to dust