The word Gouranga comes from the Hare Krishna religious movement. In Sanskrit it means "Golden One". Gauranga - also spelt Gouranga - is an alias of the movement's founding father, Shri Krishna Chaitanya Mahaprabhu, the "golden one", in veneration or because he was said to have had "golden" skin.

The word Gouranga and the phrase "Gouranga ! Be happy!" are of importance in part one and two of the Grand Theft Auto computer game series.

Stickers bearing the word Gouranga or stating Call out Gouranga and be happy! have been appearing on bridges over motorways and railways in the north of England over recent years. Similar stickers have also been appearing on public buildings, as well as the more recent surge of unsolicited (spam) emails bearing the same message. Stickers and fridge magnets with the phrase have also been handed out by 'monks' at recent music festivals throughout the UK, such as the Glastonbury and Donnington (Download) festivals.

More information can be found here: Desperately Seeking Gouranga (http://www.rlew.com/archives/00000117.htm)

Some people call this Hare Krishna spam because one meaning of Gouranga is Lord Caitanya Mahaprabhu

source: Wikipedia.com
This is the full text of the spam message from Grand Theft Auto, which has "Gouranga" as its subject (and is probably the reason why you ended up@UB right now):

Call out Gouranga be happy!!!
Gouranga Gouranga Gouranga ....
That which brings the highest happiness!!
by Esmee May 27, 2005
Get the mug
Get a gouranga mug for your girlfriend Larisa.
The master cheat code for Grand Theft Auto 2. If the user enters Gouranga as their name, they can enter more cheats such as GODOFGTA,EATSOUP,CUTIE1, and RSJABBER
by Chairman March 13, 2005
Get the mug
Get a gouranga mug for your mom Rihanna.
A word that appears on moterway bridges in north west UK. It's only purpose to annoy drivers who are left with a nagging curiosity for the rest of their day until the next day when it ceases to become important ever again.
for god sake why did they have to colour it in. Now it's more noticable and more annoying
by Rob April 17, 2003
Get the mug
Get a gouranga mug for your father-in-law Abdul.
A speciallist bridge maintenance firm who like to advertise on the bridges they maintain.
This bridge maintained by GOURANGA
by Gertrude June 21, 2004
Get the mug
Get a gouranga mug for your cousin Larisa.
the sound vibration of " Gouranga" penetrates to the soul and the journey back to Godhead begins
by Anonymous October 16, 2003
Get the merch
Get the gouranga neck gaiter and mug.
term used by monks meaning 'be happy'

the monks that play 'monk rock'

sometimes you think they will spontaneously combust
gouranga my friend!

gouranga boogie!
by cornflake298 February 25, 2006
Get the mug
Get a gouranga mug for your bunkmate Paul.