Definitions by UrbanMaker2019

Jonathong 

A type of male species specifically named Jonathon, who chooses to wear female under garments such as thongs.

Hence the name - Jonathong.

Please also see, jon-a-thongy

Have you seen the newest trend them are calling it ‘Jonathong’

Jonathong by UrbanMaker2019 February 16, 2019