| S/O | SomeOne (frequently just "s/o") |
| S/TH | SomeTHing (frequently just "s/th") |
| S2BX | Soon To Be eX |
| SAF | Single Asian Female |
| SAM | Single Asian Male |
| SAMF | Sad Ass Mother F---er |
| SAMFU | Self-Adjusting Military F--- Up |
| SAMFUTU | Situation Abnormal |
| SAPFU | Surpassing All Previous F--- Ups |
| SAR | Smart Ass Remark |
| SAYOR | Speak At Your Own Risk |
| SBB | Stupid Beyond Belief |
| SBCN | Sitting Behind the Computer |
| SBD | Silent But Deadly |
| SBF | Single Black Female |
| SBID | S---ty But It'll Do |
| SBM | Single Black Male |
| SCNR | Sorry |
| SDIHTT | SomeDay I'll Have The Time |
| SEC | SECond |
| SEG | S--- Eating Grin |
| SEP | Somebody Else's Problem |
| SFLA | Stupid Four Letter Acronym |
| SFT | Sorry For That |
| SGML | Standardized General Markup Language |
| SH | S--- Happens |
| SHLH | Sitting Here Lauging Hysterically |
| SHM | S* Happens, Mate |
| SHTS | Spit Hitting The Spam |
| SHTSI | Somebody Had To Say It |
| SICS | Sitting In Chair Snickering |
| SIG | Special Interest Group |
| SIIN | Stuffed If I Know! |
| SIL | Son In Law; Sister In Law |
| SITD | Still In The Dark |
| SJF | Single Jewish Female |
| SJM | Single Jewish Male |
| SLATFATF | So Long |
| SLIP | Single Line In Protocol; Serial Line Internet Protocol |
| SLJ | S---ty Little Job |
| SLJO | S---ty Little Job Officer |
| SMAR | Suck My Ass Raw |
| SMDP | System Monitoring Display Protocol |
| SMMWO | Shut My Mouth Wide Open |
| SMO | Serious Mode On |
| SMOF | Secret Master(s) Of Fandom |
| SMOP | Small Matter Of Programming |
| SMOFF | Serious Mode OFF |
| SMTP | Simple Mail Transfer Protocol |
| SNAC | Sitting Naked At Computer |
| SNAFU | Situation Normal: All F---ed Up |
| SNAG | Sensitive New Age Guy |
| SNERT | Snot-Nosed Egotistical Rude Teenager |
| SNFIAA | Still No F---ing Idea At All |
| SNR | Signal to Noise Ratio |
| SO | Significant Other |
| SOE | Silly/Stupid Operator Error |
| SOI | Stink On Ice |
| SOL | S--- Out of Luck |
| SOP | Standing Operational Procedures; Standard Operating Procedure |
| SOS | Same Old S--- |
| SOSO | Same Old |
| SOVS | SomeOne Very Special |
| SPAM | SPiced hAM (Hormel's canned meat) |
| SSDD | Same S--- |
| SSIA | Subject Says It All |
| ST | Star Trek; Such That (frequently just "s.t.") |
| ST-DS9 | Star Trek |
| ST-TNG | Star Trek |
| ST-TOS | Star Trek |
| ST-VOY | Star Trek |
| STBY | Sucks To Be You |
| STFU | Shut The F--- Up |
| STFW | Search The Fine/F---ing Web |
| STIFF | Stiff |
| STI / ST-TMP | Star Trek |
| STII / ST-WOK Star Trek | second movie / 'Wrath Of Khan' |
| STIII / ST-SFS Star Trek | third movie / 'Search For Spock' |
| STIV / ST-TVH Star Trek | fourth movie / 'The Voyage Home' |
| STS | So To Speak |
| STV / ST-TFF | Star Trek |
| STVI / ST-TUC Star Trek | sixth movie / 'The Undiscovered Country' |
| SUCDIC | Situation Under Control |
| SUFID | Screwing Up Face In Disgust |
| SUNOILTY | Shut Up |
| SUSFU | Situation Unchanged |
| SUYP | Shut Up You Pervert |
| SW | SoftWare; So What?; Says Whom?; StarWars |
| SW-SE | StarWars Special Edition |
| SWAG | Simple Wild Ass Guess; Scientific Wild Ass Guess |
| SWAK | Sealed With A Kiss |
| SWALK | Sealed With A Loving Kiss |
| SWCOC | Special Wishes |
| SWDYRTW | Since When Do You Rule The Web? |
| SWF | Single White Female |
| SWM | Single White Male |
| SWMBO | She Who Must Be Obeyed |
| SWYP | So What's Your Problem? |
| SYSOP | SYStem OPerator |
| SYT | Sweet Young Thing |
Unless otherwise noted, all photos and text is Copyright © Richard G Lowe, Jr.