2. (noun)thong underpants resembling a G-string; worn by women especially under very tight pants "she wore thongs in her quest for the callipygian ideal"
3. (noun)thong a thin strip of leather; often used to lashthings together
4. (noun)G-string, thong minimal clothing worn by stripteasers; a narrowstrip of fabric that covers the pubic area, passes between the thighs, and is supported by a waistband
5. (noun)flip-flop, thong a backless sandal held to the foot by a thong between the big toe and the second toe
Definition of 'thong'
