Internet Slang: Q- T

Q
QFT - Quoted for truthiness - either to show satire or agreement with something satiric.
QWP - (texting) Quit Whining, Please. (gaming) equip v / equipment n.

R
rehi (or merely re) - Hello again
RL - Real Life
RMS - Ride me sideways
ROFL/ROTFL - Rolling on (the) floor laughing
ROFLMAO/ROTFLMAO - Rolling on (the) floor laughing my ass off
ROFLMAOWPIMP/ROTFLMAOWPIMP - Rolling on (the) floor laughing my ass off while peeing in my pants
ROFLOL/ROTFLOL - Rolling on (the) floor laughing out loud
RSN - Real soon now (used sarcastically)
RTFB - Read the fucking binary (or book)
RTFS - Read the fucking source
RTFM/RTM - Read the (fucking) manual or reboot the (fucking) machine

S
SCNR - Sorry, could not resist
SFW - Safe for Work, see NSFW
sk8/sk8r/sk8er - skate/skater
smiley - Another name for emoticons
SMH - Shaking my head
SNAFU - Situation normal: all (fucked/fouled) up
Snail mail - Normal paper mail service
SOHF - Sense of humor failure
spider - The program behind a search engine
STFU - Shut the fuck up
STFW - Search the fucking web

T
TANSTAAFL - There ain't no such thing as a free lunch, a quote originally attributed to Robert Heinlein
TBF - Time between failures
TBH - To be honest
TG - That's great
TGIF - Thank God it's Friday
THX/THNX, TNX or TX - Thanks
TIA - Thanks in advance
TINC - There Is No Cabal, a term discouraging conspiracy theories
TMI - Too much information
TOOBS - Internets (refering to the internet as a series of tubes)
TOS - Terms of service
TTBOMK - To the best of my knowledge
TTFN - Ta ta for now
TTYL - Talk to you later (also spelled TTUL, T2UL or T2YL)
tweedler - One who has deep love for all computer related technology and gadgets
TY - Thank you
TYT - Take your time
TYVM - Thank you very much