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3.
GSI
An acronym for a "generic sexual inuendo".
"Thats what she said" is a GSI
by Trevor Davis 69 June 18, 2010
10 3
 
1.
GSI
Graduate Student Instructor. Terminology used at UC Berkeley.
My GSI was able to help me in the discussion portion of the class.
by Go Cal!!!! June 09, 2009
51 6
 
2.
GSI
Synonym of SIF (secret internet fattie) for the Spanish Gorda Secreta de Internet.
"Hey Erdos, I believe this OkCupid profile is GSI compliant."

"Yeah, look at that strategic camera angle"
by MeherBaba April 24, 2007
76 39
 
4.
GSI
Google Search It
"Where can I get that video you sent me?"
"GSI"
"Thanks."
by Mutank March 03, 2009
5 9
 
5.
GSI
Is an acronym for the Greer Sucks Initiative. To show a webpage or product supports the initiative, put the following somewhere in the document:

This page is GSI Compliant
Jay> Man, did you see that transformer explode all over Greer's Accord?
Wes> Yup, I wonder why he parked under it?
Jay> I know why!
Wes> Why?
Jay> Greer Sucks!
by GsiCommish October 13, 2004
13 29
 
6.
GSI
acronym for "Get Stuck In" or "Get Sexual Intercourse"
Sam: I'm away to talk to Amy

James: GSI dude
by JTJP March 16, 2007
8 26