Sim
A person with almost non-existent eyes that defy logical reasoning. Also used to explain the phenomena of closed eyes in photos, or the act of closing your eyes since the size of the eyes during sleep will be bigger than that of a Sim.
Look at that guy! He's Simming! I can hear his snoring.

He's simming in the simming pool! We should really go and save him because he'll drown if we do not pry his eyes open soon!
by HYPERBEAN November 26, 2010
sim
usually used in short text format to be a little sick in your mouth. Usually after having a shot of alcohol or downing a drink. sometimes produced from burping
little sim from 2 shots of Jäger. noooice
by wassat June 21, 2010
Sim
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 06, 2010
SIM
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 07, 2005
SIM
acronym for Skype Instant Messenger.
Yeah, we have been SIMing all night.
by a. warman November 02, 2009
SIM
SIM acronym for "Sex in the Mouth"
"Eating that chocolate was like SIM"
by Sherrie_Lynn July 10, 2008
sim
SIMMMMMMMMM
sim is yes!!!
Ed: You sure you want to go?
Bob: simmm
by Bruceh June 06, 2005

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