SFDTM 

An accronym, stands for: So F*cking Dead To Me. To be used in regular online conversations when it gets too annoying to spell it all out. Usually occurs after someone pisses you off, forgets something for you, or was just born to annoy you.

'Friend': Hey, sorry I forgot you at the pub. I got pissed and then ended up going home with a stranger. Where were you?
Me: Sod off, you're SFDTM.

SFDTM by JK825 July 12, 2007

SMDTM 

Abbreviation for the phrase: "Show me don't tell me". For use in emails, instant messaging and sms texting.

Son: "Dad, I hope you are still able to read and comprehend this text. The doctors called and told me you only have a day or two and you are drifting further into oblivion as each hour passes. My platoon is pinned down in this hell hole of a valley and surrounded on all sides by the advancing Borneo Free Militia. They are ruthless and brutal and we are sitting ducks waiting to be swept upon in a grotesque frenzy.

Despite these forlorn circumstances, I made a vow many years ago-before I arrived here-that I would be by your side in your final days. I intend on upholding that promise. Even if I have to sprint those 6 miles out to sea alone with nothing but my rifle and your lucky hatchet on my hip, I will make it there. I will move heaven and earth-and believe me-you will once again feel my hand in yours."

Sent at 03:56 AM

Dad: "SMDTM"

Received 3 mins ago

SMDTM by smegmanutz December 24, 2019

smdtmd 

'Suck my dick thru my draws'

(made popular by rapper Big Sean)

you: yo stop bein a bitch
me: fuck u smdtmd

smdtmd by big sean don November 29, 2011

SDTM 

pinball acronym for "straight down the middle," the act of the ball draining directly between the flippers

That last ball was like sex with you: SDTM and only lasted 30 seconds.

SDTM by Throbbing Monster February 11, 2009

SFTMC 

Text messaging acronym.

SFTMC means STOP FUCKING TEXTING ME AND CALL!!!
This may be used when you have just received text number 26 in the on going hour long text-a-thon with a friend you are trying to make simple plans with...and it has dawned on you that the entire thing could have been taken Care of with a 3 minute conversation.

SFTMC is the creation of Savannah stand up comedian Shane Gray...who hates text messaging more than a straight man hates Lady GAGA.

Dude...it doesn't take 25 texts to decide what bar we are singing Karaoke at.

Well I just can decide whether I will sound better at the Rail Pub Or McDonoughs or...

SFTMC

SFTMC by Shane C. Gray June 24, 2011

Tumblr Sad™ 

Tumblr sad™ are usually people who fake being sad due to the "aesthetic" of it. Most of these people are "surprisingly" found on Tumblr.

"That app is just full of Tumblr Sad™ fags"

Tumblr Sad™ by Hate-Sex-Is-Best-Sex March 11, 2018