A form of underwear for women. Risky in the sense that some women who wear it shouldn't. Consists of an ass string and a very thin frontal portion. Worn on the right women, it is extremely sexy.
by Beowulf June 26, 2003

by ToddBranton December 28, 2005

Underwear in which the rear portion is a string worn between the butt cheeks, providing minimal coverage, maximum ass exposure.
by Potem February 15, 2003

by Kiwi June 17, 2005

Everyone knows that, you dumb ass!
by Deine Mutter July 15, 2004

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.
by Jay shay December 28, 2005

by Fuckyourmother December 31, 2005
