STM

STM is slang for smiling to myself and is very similar to abbreviations like LOL (laugh out loud) and FTW (For The Win)It is one of the fastest growingly used words and next year will be added in the English dictionary.

Oh, and it is often mistaken for STI or STD (sexually transmitted infection/disease)

Nat.: Oh, remember that time with that teddy bear
Jess: Haha! STM :)

by berackk July 26, 2011

STM

Stokes Per Minute

See masturbate
See handjob

I can stroke my penis at 350 STM.

My girlfriend gives my a handjob at 650 STM.

by Calvin August 16, 2004

STM

STM is an acronym for "Stop The Madness". It is often used to express suprise, excitement, frustration or disbelief of some sort.

"LeBron James just signed to the Miami Heat, STM" or "Have you heard Lil Wayne's new song? STM"

by J-Khan December 15, 2011

STM

1. "SHUT THE MOUTH"

2. A kind, quick response to a text from a girlfriend.

3. When you really mean STFUB.

AutoText Entry:"STM"

GF txt: "Get a job"
BF txt: "STM"

by Cpl Caveman November 6, 2009

STM

1. "SHUT THE MOUTH"

2. A kind, quick response to a text from a girlfriend.

3. When you really mean STFUB.

AutoText Entry:"STM"

GF txt: "Get a job"
BF txt: "STM"

by Cpl Caveman November 6, 2009

stm

1) One who likes to perform the action of sticking one's finger up the anal cavity of another human being, usually being male,and/or ugly, as STM also denotes being a queer.

2) Can be used in conjunction with yayaya.

1) So, STM I hear you anally fingered that queer guy!?!? STM....YAYA YOUR NOT GAY!

by Pseudo Mexican December 19, 2003

STM

Short for Stab that Mutherfuker

John says "he's a dickhead ay"
Ned Says "fuk yea STM"
John Says 'Haha yeah"

by JL Sikkent March 8, 2009