stm means short term memory

jack : i forgot yersterday the jokes you told me
ben : you stm is it?
door lianms 12 april 2009
Top Definition
Smiling To Myself
To use instead of lol when you actually are not lol-ing and just smiling to yourself.
Msn Dude: Hey man, I lost my shoe today...
Msn Man: stm, you're a jackass
door Mandeep 17 juni 2007
Stop Tailgating Me, a bumper sticker often found on vehicles of slow ass drivers. Seeing this bumper sticker makes you want to tailgate them even more than if they didn't have the sticker at all, basically it's superfluous.
Dude, that trucks got an STM sticker on it, let's tailgate 'em!
door SiERRAAAAAAAAAAAAAA 2 februari 2008
Secret Tumblr Message from one blog to another. It's cryptic and personal. It's specific to the mini blogging site
STM: I saw what you did there.
door KarsonK 2 augustus 2011
Sexually Transmitted Miracle

or and unwanted baby.
You're a STM
door Miow_epicness 21 juli 2010
Smiling To Myself.
A more realistic saying for when someone says something funny over the internet as opposed to lol because no one is really laughing out laughing.
Gemma: I just fell down the stairs and broke my legs.
Kayleigh: STM
door kaygem 5 oktober 2008
"Speak to me", Used as a greeting when answering your phone
Phone rings!

Daniel: "STM!"

John: "Hi Daniel, I was just ringing you to ask you if your going to the patch tonight?"
door Stabber of loughshinny 4 juli 2009

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