= S =
S/N ratio
sacred
saga
sagan
SAIL
salescritter
salt
salt mines
salt substrate
same-day service
samizdat
samurai
sandbender
sandbox
sanity check
Saturday-night special
say
scag
scanno
schroedinbug
science-fiction fandom
scram switch
scratch
scratch monkey
scream and die
screaming tty
screw
screwage
scribble
scrog
scrool
scrozzle
scruffies
SCSI
ScumOS
search-and-destroy mode
second-system effect
secondary damage
security through obscurity
SED
segfault
seggie
segment
segmentation fault
segv
self-reference
selvage
semi
semi-infinite
senior bit
server
SEX
sex changer
shambolic link
sharchive
Share and enjoy!
shareware
shelfware
shell
shell out
shift left (or right) logical
shim
shitogram
short card
shotgun debugging
shovelware
showstopper
shriek
Shub-Internet
sidecar
SIG
sig block
sig quote
sig virus
signal-to-noise ratio
silicon
silly walk
silo
Silver Book
since time T equals minus infinity
sitename
skrog
skulker
slack
slap on the side
slash
sleep
slim
slop
slopsucker
slurp
smart
smart terminal
smash case
smash the stack
smiley
smoke
smoke and mirrors
smoke test
smoking clover
SMOP
smurf
SNAFU principle
snail
snail-mail
snap
snarf
snarf & barf
snarf down
snark
sneakernet
sniff
snivitz
SO
social engineering
social science number
soft boot
softcopy
software bloat
software laser
software rot
softwarily
softy
some random X
sorcerer's apprentice mode
SOS
source of all good bits
space-cadet keyboard
SPACEWAR
spaghetti code
spaghetti inheritance
spam
special-case
speedometer
spell
spelling flame
spiffy
spike
spin
spl
splash screen
splat
spod
spoiler
sponge
spoo
spooge
spool
spool file
square tape
stack
stack puke
stale pointer bug
state
steam-powered
stiffy
stir-fried random
stomp on
Stone Age
stone knives and bearskins
stoppage
store
strided
stroke
strudel
stubroutine
studly
studlycaps
stunning
stupid-sort
Stupids
Sturgeon's Law
sucking mud
sufficiently small
suit
suitable win
suitably small
sun lounge
sun-stools
sunspots
super source quench
superprogrammer
superuser
support
Suzie COBOL
swab
swap
swap space
swapped in
swapped out
swizzle
sync
syntactic salt
syntactic sugar
sys-frog
sysadmin
sysape
sysop
system
systems jock
system mangler
SysVile