Shaggathong 

Where a group of male and females jump on a car, the females all wear thongs where the guys shag the Fuck outta them. Better known as the shaggathong.

(guy says to female) Wanna jump on the Shaggathong tonight?

Shaggathong by CheesyTwanger01 December 3, 2017

shagathon 

Sexual version of a marathon whereby adults indulge in constant shagging over a number of days. Experimentalism is encouraged!

My mate Ken and his bird had a fucking shagathon for 6 days. Lucky bugger.

shagathon by charbrad73 November 25, 2009

Shawgathon 

A way to say "Bro,dawg,shawg,zawg,shblawg."

Shawgathon really tripped💀
bro decided to runa shawgathon instead of a marathon💀

Shawgathon by Exirvity September 11, 2023

shagathon 

a sleepover encluding one or more girls

“hey rosie wanna have a shagathon”

shagathon by Visum March 18, 2022

shagathon 

a sleepover between one or more women

“rosie, wanna have. a shagathon?”

shagathon by Visum March 18, 2022