The act of licking one's thong and tickling the ass cheeks until one laughs. When they laugh its a Jonathong.
Bobalinda: 'haha stop you "Jonathon" it tickles too much!'

Jonathon: 'They dont call it the "Jonathong" for nothing'
by Davis786439 July 18, 2009
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Having or containing a 3XL-4XL thong that is tight around your croch or head. Soon to be a famous brand.
Dude, you have a jonathong on your head!!
by t3rd December 4, 2006
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When your friend won't make a list about his cap's red flags even when he says he's in his "alone era"
Jonathong is on Kendrick's head...omg
by Kendrick1234567890 April 10, 2023
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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’
by UrbanMaker2019 February 16, 2019
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