G-string
G-string , noun
1.
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.
2.
A small covering for the loins.
3.
(Physics) A transmission line consisting a single wire coated with dielectric, thus permitting surface-wave propagation. [slang] — Dict. Sci. Technol