What Does SU Mean?

Co-authored by Imad Jbara and Janice Tieperman

Last Updated: May 29, 2025 Fact Checked

Did the letters “SU” just pop up on your screen? This abbreviation can be a little confusing to decode at first since it has different meanings on different platforms. You’ve come to the right article, though—we’re to walk you through everything SU can possibly mean, whether you come across it on social media or over text. In just a few minutes, you’ll be able to add this handy acronym to your own texts and posts!

Section 1 of 4:

What does SU stand for on a Snapchat Story?

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SU stands for “Swipe Up” on Snapchat Stories. Platforms like Snapchat let users embed links in their Snapchat Stories. When you view Snapchat Stories, you can get to the link by swiping up on your screen, which redirects you to the embedded website. On unlinked Snapchat Stories, swiping up toggles a “reply” feature, which lets you DM the original poster.
- Some Snapchatters use “S/U” instead of “SU” for this purpose. Both abbreviations mean “Swipe Up,” though!
- “SU for 10% off your order! 🤑”
- “SU for a compliment 💛”
- Instagram used to have a swipe up feature, but the platform got rid of it in 2021.^{[1]
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Section 2 of 4:

What does SU mean in texting?

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SU often stands for “Shut Up.” SU is a quick, efficient way to reply to a teasing remark or joke. If you see “SU” pop up during a playful text convo, it’s safe to assume that the sender is saying “shut up.”^{[2]
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- Person 1: “Someone’s got a crush 👀😂”
  Person 2: “SU 🙄”
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SU can also mean “See You.” If a text conversation is starting to wind down, someone might send “SU” instead of “Bye,” “Goodbye,” or “Talk to you later.”
- Person 1: “It was great chatting!! I’ll ttyl 😄”
  Person 2: “Same here! SU”

Section 3 of 4:

How to Use SU

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Invite a follower to check out a link. Maybe you’re hoping to share your Amazon wishlist around, or you’ve got a promo code to a cool merch site. Whatever the case, include the link in your Snap Story, along with a caption that encourages viewers to swipe up.^{[3]
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- “SU for a fun surprise! 😝”
- “SU to check out the video ⬆”
- You can add a link to your own Snapchat Story by using the paperclip button on your Snapchat screen.^{[4]
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Encourage your followers to send you a DM. Add a new post to your Snapchat Story where you encourage your friends to swipe up and message you. If you’re feeling especially creative, you might post an emoji game to your Story, where you encourage your friends to DM you a specific emoji from a list.
- “I’m so bored LOL SU for a tbh!! ☝”
- “SU to rate me!
  🐵=funny
  😎=cool
  🤓=nerdy
  👻=weird
  😻=adorable”
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Casually tell someone to shut up with SU. Maybe your friend is giving you a hard time about something, or your parents are teasing you in the family group chat. Playfully put your foot down by sending a quick SU.
- Friend: “Heard that someone likes Tyler 😜”
  You: “SU!! 😖”
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Use SU as a replacement for a quick goodbye. Your group chat convo is starting to wrap things up, but you don’t have enough time write out a full reply. Keep things short by signing off with a quick SU.^{[5]
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- Friend: “Gotta go. See ya later!”
  You: “SU!”

Section 4 of 4:

How to Reply to SU

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“Swipe Up” is used in Snapchat Stories to redirect users to a new webpage. You’re welcome to use the link, but you definitely don’t have to reply to it.
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DM the person if they’re looking for someone to chat with. Swipe up on the Story in question and shoot them a quick message to get a conversation going.
- Them: “SU for a tbh! ⬆”
  You: “Lay it on me 👀”
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Playfully dish it back to a friend who tells you to shut up. Chances are, a friend who sends “shut up” in chat isn’t actually annoyed or pissed off, so feel free to send a friendly retort in reply.
- You: “Heard about the gym class incident from Sarah 😏”
  Them: “Ugh… SU 😭😂”
  You: “Aw, there’s no need to be like that 😝”
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Say “bye” if the other person just sent a “See You” message. If the other person is signing off, feel free to send a friendly sign-off of your own! “Goodbye,” “Bye,” “Great talking to you,” and “Talk soon” are all nice options.
- Them: “SU!”
  You: “Bye! 👋”