Fat Dong 

men in southern states of United States use the word Fat Dong as southern slang to describe the girth of their Dick

I’m a rad dude with a fat dong

Fat Dong by Unissay July 9, 2021

Fat dong 

A thick and long cock with hair that looks like a dickweed

Fat dong is hard

Fat dong by Balls in ur jaw October 27, 2021

Fat Dongle 

I large (or thicc) piece of software, the main use of the "fat dongle" is to shove that thicc bae into your sexy computer and make someone jizz.

"Babe, shove that fat dongle into my hardware"

Fat Dongle by FatDongle April 20, 2017