G-string

[jee-string] /ˈdʒiˌstrɪŋ/

noun
1.
a loincloth or breechcloth, usually secured by a cord at the waist.
2.
such a garment made of a narrow strip of decorative fabric and worn by striptease entertainers.
noun
1.
a piece of cloth attached to a narrow waistband covering the pubic area, worn esp by strippers
2.
a strip of cloth attached to the front and back of a waistband and covering the loins
3.
(music) a string tuned to G, such as the lowest string of a violin
noun

See T-back
n.

1878, geestring, “loincloth worn by American Indian,” originally the string that holds it up, etymology unknown. The spelling with G (1882) is perhaps from influence of violin string tuned to a G (in this sense G string is first recorded 1831), the lowest and heaviest of the violin strings. First used of women’s attire 1936, with reference to strip-teasers.

I AM the spirit of the silver “G”:
I am silvered sadness,
I am moonlit gladness,
I am that fine madness
Of reverence half, and half of ecstasy
[from “Spirit of the ‘G’ String,” Alfred L. Donaldson, in “Songs of My Violin,” 1901]

n phr,n

A breechcloth, or brief covering for the genitals, worn esp by striptease dancers: Thus the G-string became an integral part of a stripper’s apparatus

[1878+; origin unknown; the dated use refers to Plains Indian use of a loincloth; the stripper sense is found in the 1930s]