A reference to the Nintendo franchise Donkey Kong. The Dong is a reference to Donkey Kong himself. It is mainly used because almost all of Donkey Kong's portraits portray him with a massive erection.

It’s when someone spreads your cheeks so far that you can’t hold poop anymore

1. A vulgar synonym for the penis, most commonly used as a term for big phallusses.
2. The currency of Vietnam.
3. Part of the onomatopoeia for the sound of a bell: "ding dong"

1. As coined by Michael of Vsauce:

Do
Online
Now
Guys

An application, game, program, or other feature that you can use the internet to do. Usually, a DONG is simply an interesting timewaster, or a cool effect.

2. A penis.

A very beautiful name with awesome meanings in Chinese. Traditional Chinese last name over the culture of history of 5,000 years. For males it can mean president, knowledgeable person as well as handsome and for females it can mean beautiful, gorgeous. All-in-all this name get bad raps from its American-English cousin "dong" which means "penis".

Nevertheless, there are wonderful people out there who keep this name without changing or adding an English name. I truly respect them!

Sending a photo of ones genitalia via cellphone to a significant other or accidental random person.

"Donging" obviously implys the sender is a man.

The word for a large penis, as opposed to wiener, which mkes it sound short.