(Abb. Sick In Mouth Syndrome). The act of vomiting but retaining the contents within the mouth.
I wasn't very well on the ski slopes today, I had a real bad case of the SIMS at one point
by MABarlow January 29, 2012
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Sim is another word used for sex in many parts of the world..
Husband: Want to have sim tonight honey?
Wife: No thanks i had sim with your brother yesterday... Woops
by Gforce1001 July 31, 2009
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Short for Singapore Institute of Management. Somewhat-major school in Singapore that deals with business-related courses. Has two campuses.
To get to SIM I need to take MRT to Clementi and hop on bus 154!
by Z' June 7, 2005
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hey, you wanna go out?

Nah, im simming

you mean you'd rather play a simulation of life than actually have one?

er yeah
by longstocka May 1, 2009
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(n) (Plural in form)
A term for a confused, sometimes unclear overbearing and possibly baked teacher.

To Pull a Sims: To do something stupid, unreliable, or just confusing.

A Sims moment: a moment in time in which the object has acted like a sims

Sims-Quote: a quote that somebody said that shows their simsity

Other forms: Simslike, to sims, simser
I accidentaly pulled a sims when I told my student that he had to do 3 papers, study for a test and read 4 chapters of The Scarlet Letter but i didn't tell him how do to any of it...
by XG-WJ923 December 21, 2004
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A game for people who try and emulate a real life.
The sims online is for perverts and homosexuals.
Man, he must play the sims.
He enjoys the sims online.
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Description of someone repulsive (both in personality and looks), far worse than a minger. Often smells of fish and tends to suffer with bankruptcy.
Did you see that girl? She's such a SIM!
by Anna Cordes June 6, 2010
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