Dudling 

Saying the word "dude" way too much, or just being a basic bro way too hard.

Brad was dudling so much that his teacher could not comprehend what language he was attempting to communicate with.

Dudling by Readerweirdo July 11, 2016

Duolingo 

A dark web platform which kidnaps your close ones. To release them, one must learn a language. Their mascot is the infamous green owl.

Me:"Please, i want to see my kids again!"
The Duolingo Owl:"Not until you learn that french lesson you don't!"

Duolingo by Karen&Kids April 2, 2019

Duolingo 

The messenger of hell. He kidnaps your family and you might get them back if you complete your lessons.

“Idk man... the duolingo owl is kinda hot...”

Duolingo by （；＿；） April 11, 2019

Duolingo 

The living embodiment of Satan; will do anything he possibly can to make you pay for your absence on his spanish lesson, you bafoon.

Hey! Last night, I skipped my lesson on Duolingo!
What happened next?
Remember my kid?

Duolingo by DracoBoom October 29, 2019

Dueling Harmonica 

Two individuals, undefined in orientation and/or gender, each partaking of one half of a mans penis, divided lengthwise, by means of oral suction.

After a heated arguement, they decide to compromise and perform the dueling harmonica.

Guy 1: Yo, these two babes shared my donicker last night.
Guy. 2: You mean they gave you a dueling harmonic?
Guy 1: Yeah, I guess.

Dueling Harmonica by The College Board April 14, 2008

Duolingo Bird 

The bird who stole your family including your kids and doesn't feed then until you learn a diffrent language.

New York Times: A mysterious bird named "Duolingo Bird" might be the suspect of dead victims. This is because people didn't learn any new launguages in 1 day.

Duolingo Bird by packtober April 4, 2019

dudding

The semi-professional art of doing of nothing productive. Apparel may include "dudding trousers" (pyjama bottoms) and a "dudding cave" (bedroom). Large amounts of comfort and food are a priority, while physical exertion is frowned upon.
It is particularly prevalent when hung over or on sick days, and often features long hours of television, films, computer games and/or masturbation.

"I dudded around in the living room playing Champ Manager for 10 hours while watching cricket, eating bacon and drinking milk."
"That's good dudding..."
"I know."

dudding by Sir Duddy of Scranalot April 16, 2009