The act of rolling up your penis and pulling your scrotum over to make it look like you have a huge bulge in your underwear
"I thought dude was packing some serious dick turns out he was doing the Duddy Bing.
A BAD and boujie milk dud bitch, who’s always down as fuck.
She’s a duddy bitch, who’s the bitch now
Phrase said by Lordxbox whenever he feel fuddy duddy fuddy duddy
Wei ying : You fuddy duddy! But I still love you <3