“Idk” is a common slang term used in texting. It’s a quick and simple way to say “I don’t know” when you don’t want to type out the full phrase.

Keep reading to learn how to use this abbreviation and how to reply when someone sends it to you.

We’ve included many examples to help you get comfortable using “idk” in your texts.

What Does IDK Mean?

“Idk” stands for “I don’t know.” It’s a very informal expression people often use in text messages. Use “idk” when you’re unsure about something, confused, or frustrated.

If someone texts you “idk” and seems confused, offer them more details or try to answer their questions.

“Idk” is informal slang, so it’s best to avoid using it in professional or formal conversations, such as when communicating with your boss or teacher.

Another similar abbreviation is “idek,” which stands for “I don’t even know.”

Use “idk” when you’re unsure about something. Just like saying “I don’t know,” you can reply with “idk” if you’re uncertain about the answer to someone’s question.

You can send “idk” on its own or include a brief explanation or any details you have that might help.

Example:

• Person A: “Do you know when Jennie’s birthday is?”
• Person B: “Idk 🤷”
• Person A: “Was the paper due today?”
• Person B: “Uh, idk? 😬 I thought it was due tomorrow??”
• Person A: “Where’s my jacket?”
• Person B: “Idk, I haven’t seen it.”

Use “idk” to show confusion.

If you’re unsure or lacking enough information, sending “idk” in a text is a quick way to let the other person know you’re uncertain.

For example, use it when you’re not sure about where something is or when your plans are unclear.

Examples:

• “Idk where my book is…😭”
• “Idk if I’ll be home tonight, so just go ahead and eat without me.”
• “Idk where we’re headed, but we’ll be back later.”
• “Help me choose the version because idk 😅”
• “Idk what she thinks of the idea, but I hope it works out 🤞”

Show frustration with “idk.”

If you’re feeling frustrated, adding “idk” (or “idek”) to your text can help express your feelings. Including some exasperated emojis can also emphasize your mood.

Examples:

• “Idk anymore 🙄”
• “Idek. I don’t want to discuss it 😒”
• “Idk bro, do whatever you want.”
• “Idk, just choose whatever.”
• “Idk, it’s fine. You can all go ahead without me.”

Indicate hesitation by using “idk.”

If you’re unsure about a decision or answer, or if you’re hesitant about something, include “idk” in your message. It helps convey that you’re not completely confident. For instance:

• “Idk if I should go or stay 😬 What if things don’t turn out well?”
• “I’m thinking about buying this dress online, but idk… it’s a bit pricey 😳”
• “Idk if meeting up on Friday is a good idea. I have so much work 😢”
• “Jason wants to go out for dinner. Idk, should we?”
• “I’d like to go on vacation, but idk. Where would I even go? 🤔”

Show a laid-back attitude with “idk.”

When you want to come across as relaxed and easygoing, “idk” is ideal for casual situations. It suggests that you’re flexible and open to whatever comes your way. For example:

• “Idk, I’m open to anything really.”
• “I’m free on Friday. We can hang out or do something idk.”
• “Idk, I might take a walk or just see how things go 🤷”
• “We’re choosing a movie, but idk, I’m good with anything.”
• “Idk, I think I’ll just stay in this weekend and get some rest haha 😴”

Responding to “idk”

Offer additional details.

When someone expresses confusion, provide more information to assist them. If they’re asking for clarification, share what you know to help them understand better.

Example:

• Them: “Idk where my phone is…”
• You: “…Aren’t you using it to text right now?”
• Them: “Idk how to do this. Help 😭”
• You: “Don’t worry, I can help. I’m pretty experienced with this 🤓”

Show empathy if someone is frustrated.

If someone seems frustrated or upset, offer sympathy and comforting words. Adding a kind emoji can help alleviate their frustration.

Example:

• Them: “Idk, I don’t want to discuss it.”
• You: “That’s okay! Just remember, I’m here if you want to talk later 🥰”
• Them: “Idk anymore 🙄”
• You: “I’m sorry they’re causing you so much trouble 😭 You can always vent to me.”

Share your own perspective if someone is uncertain.

When someone is unsure about a decision, offer your own opinion to help them decide. Sometimes a fresh viewpoint can make a difference.

Examples:

• Them: “Idk if I should go or not…”
• You: “I think you should definitely go! It sounds like a great time! 😊”
• Them: “I’m hungry but idk what to eat 😫”
• You: “How about sushi? It’s always my go-to choice lol 🍣”