"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?"
by Stabber of loughshinny July 4, 2009
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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
by kaygem October 5, 2008
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Acronym meaning “Swear To Monk”. Nobody can ever lie on it. It’s a display of the highest form of honesty.
Xavier: Did you eat my cookie yesterday?
Josiah: Nah man STM I didn’t .
Xavier: okay sounds good, I wouldn’t have believed you if you didn’t swear to monk.
by ÃÜŠ February 12, 2021
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Standard Topless Makeout. The go to hookup situation for virgins, girls playing hard to get, Catholics, or conservative Protestants.
Dude 1: "Did you get any action last night with Kate after you left the party?"

Dude 2: "No more than an STM. She goes to church every Sunday and she may be trying to date me."
by mysteriousmd November 29, 2010
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Acronym for the rap song "Shake That Monkey" by West coast rapper Too Short. The song was released in 2003.
Doesn't SGRho have a stroll called STM?
by RHOck22 July 17, 2022
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Sexually Transmitted Marketing (STM). A viral marketing campaign that uses blatantly obvious sexual innuendo to spread itself across the internet and/or social networks, leaving victims of its tasteless imagery feeling almost as dirty as those who catch its biological counterpart (see STD).
Nadia: I think I caught an STM on Facebook yesterday, some new "NutLiquor" vodka that was "69 proof" and had "no salty aftertaste"

Marc: You should get that checked.
by someguy2012 November 9, 2011
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STM- said to much. When you go overboard while your texting and couldn't be bothered to go back and delete it.
Currently sitting on the toilet waiting on last nights Taco Bell to arrive oh god STM !
by Honey jones November 14, 2016
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