GSI 

Graduate Student Instructor. Terminology used at UC Berkeley.

My GSI was able to help me in the discussion portion of the class.

GSI by Go Cal!!!! June 9, 2009

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"

GSI by Meherbaba May 1, 2007

GSI 

An acronym for a "generic sexual inuendo".

"Thats what she said" is a GSI

GSI by Trevor Davis 69 June 21, 2010

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!

GSI by GsiCommish October 13, 2004

GSI 

Google Search It

"Where can I get that video you sent me?"
"GSI"
"Thanks."

GSI by Mutank March 3, 2009

GSI 

gay screaming intensifies

senpai: so cute~
you: *GSI*

GSI by Just Grimm The Gay Moth. January 14, 2020

get stuck in (GSIN) 

Get Stuck IN - the act of getting stuck in;

getting down to business;

getting passionately inolved in your chosen field;

getting your fingers dirty.

Did you get stuck in (GSIN) in man?
That was some proper GSIN action from Russel this morning!
How did you go with that abstract acrostic - did you get stuck in?

related words - GSRIN; the act of getting stuck right in.

get stuck in (GSIN) by OldManW77 January 14, 2010