Thong (noun)

1. A strip of leather or other material used to fasten something or as a whip or lash.
2. A piece of clothing worn for covering or supporting the genitals, typically consisting of a strip of cloth that passes between the legs and is attached to a waistband.

Origin:

From old english þwong, from proto-germanic *þwangaz ("thong"), from proto-indo-european *teng- ("to stretch, tens.e")

Examples:

1. She used a thong to tie the bundle of sticks together.
2. The whip had a thong made of leather.
3. The bikini bottom was a thong.
4. She wore a thong to avoid tan lines.
5. The thong was uncomfortable and caused chaffing.