“UDK” stands for “You Don’t Know”

What does UDK mean?

A person saying “UDK” is asking or saying, “You Don’t Know.” Typically, it’s used in a question format. Where one person is asking another, “You don’t know?” For example, “UDK where your car is!?” It’s an inquiry to the person or user who is receiving the chat.

Examples and other meanings

• “UDK where your cat is? What!?”
  • Emotion: Question
  • Intention: In this message, the person is a little bit shocked that they don’t know where the cat is. It’s a question along with some emotions.
• “Yeah, I mean. IDK. And UDK! So we all don’t know!”
  • Emotion: Cute
  • Intention: In a way, this person is being silly and cute with their message. Saying that two people have no idea what’s going on!

Popularity over time