G string 

The first lowest string on a violin
The second lowest string on a viola
The second lowest string on a cello
The first highest string on a double bass
and a type of wedgie panties

Sarah: Man... my peg for my g string keeps slipping I hate it
Emily: What you have a peg on your underwear?
Sarah: No... Not that type of g string!

G string by bobkielviol March 12, 2009

g string 

it could be a short term for"gamma string"."gamma" is known as a letter of the greek alphabet which looks like a "y".this "y" shape looks like this sexy underwear. perhaps, the word"gamma string" was shortened to "g string" because it lacks slanguistic taste.

Damn it!she looks sexy on that g string.

g string by Jay shay December 28, 2005

g string 

The third string on a standard six or seven string guitar.

Guy 1: Man I saw this girl wearing nothing but a g string.
Guy 2: What the fuck, dude?

g string by Fuckyourmother December 31, 2005

g string 

another term used for "BUTT-FLOSS"

The g string is a piece of clothing that is shoved/suffacated inbetween ass cheeks.

g string by boogah April 19, 2006

g string 

3rd string on a guitar, and it is the 1st on a bass guitar

"My g string is out of tune."

"Hey babe can you come over and tighten my g string?"
"No I can't because its stuck in my vagina!"

"Do you want to lick my G sting?"

g string by Fredric S. October 16, 2005

g string 

very sexy underwear

g string by JeVoNeR September 14, 2003

g string 

The first string form the left on a violin.

Bob's favorite string was the g string oh pervy.

g string by gelerts-_ule456 April 9, 2006