g-string(n = noun.artifact) thong - minimal clothing worn by stripteasers; a narrow strip of fabric that covers the pubic area, passes between the thighs, and is supported by a waistband;
a patch of cloth attached to and supported by string-like cords, worn over the hips, and serving to cover only the pubic area; -- often worn by stripteasers. [WordNet 1.5]
A small covering for the loins. [WordNet 1.5]
A transmission line consisting a single wire coated with dielectric, thus permitting surface-wave propagation. [PJC]
g-string, n.
1 Mus. a string sounding the note G.
2 (also gee-string) a narrow strip of cloth etc. covering only the genitals and attached to a string round the waist, as worn esp. by striptease artistes.