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What Does 'FS' Mean On Instagram A Guide To Common Acronyms And Slang


What Does ‘FS’ Mean On Instagram? A Guide To Common Acronyms And Slang

Communicating on Instagram without understanding the acronyms and slang used on the platform, can leave you confused. The incorrect use of online jargon can also result in misunderstandings.

Net Influencer is here to rescue you. We enlighten you on the meaning of “Fs” which is often used on Instagram. This general response of agreement may seem simple or unnoticeable. Apart from what it means, it is also an indication that you belong to the community. Correctly using this acronym makes you incredibly relatable. 

The Meaning and Usage of ‘Fs’

This Instagram standard and staple acronym means “for sure”. While the lowercase version “fs” is more popular, the uppercase version “FS” is also acceptable. This acronym can be slipped into just about any and every conversation. Because it is so easy to insert anywhere and is a subtle yet fitting response, it can be overused. 

How ‘Fs’ is used in conversation and captions

There are a few ways “Fs” can be used in conversation and captions. We provide a few short examples you can study and adapt for real-life use.

Example 1: As an answer to a question

  • Kim: Hey Kylie, are you coming to my party this weekend? 
  • Kylie: Fs, Yeah.

Example 2: To emphasize your point

  • Kim: Kylie, do you know about that new salad bar everyone’s talking about? I heard they are literally the best. 
  • Kylie: Yeah, they are legit! Fs.

Example 3: Expressing confidence 

  • Kim: Any suggestions on a new fragrance?
  • Kylie: You have to get something from Dior, fs.

Example 4: As sarcasm

  • Kim: I need to borrow your favorite handbag for a meeting. It matches my fit perfectly. 
  • Kylie: Yeah, that is Fs not happening!

How To Reply When Someone Uses “FS”

“Fs” does not warrant a detailed reply. It is used casually and routinely and allows for the progression of the conversation. However, when responding to it, it is important to show the other person that you understood what they were saying.


Kim: Kylie, did you like that place I asked you about earlier?

Kylie: The new salad bar? Fs!

Kim: Great! I am so going there for lunch today.

Comparing ‘Fs’ to similar phrases or slang words 

Although “Fs” means “for sure” on Instagram, it’s used interchangeably with “FFS” which means “For F__K sake”. This conveys a completely different meaning. “FFS” expresses annoyance and is not part of routine conversation. 


Kim: Kylie, I’m asking one more time. Please can I borrow your favorite handbag? It’s an important meeting, and your bag matches my fit.

Kylie: FS (For F__k Sake) Kim, I said no!

“Fs” can also mean “for sale” on Instagram, which is popular with NFTs and crypto-selling. And very seldom it can be used as “free stuff”.


Kim: Do you like my Fur coat? I’m so over it. I am literally putting it up “Fs” 

Kylie: Huh?

Kim: Oh honey, it is for sale. Like, do you want it?


Kylie: I love hanging out with you when you’re cleaning out your closet, Kim.

Kim: Huh, why?

Kylie: All that “Fs” (Free Stuff) 

Here are a few “Fs” posts from Instagram:

This fan pic posted on Instagram of Stranger Things actress, Sadie Sink, has the “fs” hashtag in the description. The fan expresses her excitement and joy of meeting Sadie with several hashtags. “fs” is used to reinforce the overall positive vibe.

In this example, a stunning picture of a young woman posing by the water carries the “fs” hashtag. This is “for sure” a beautiful destination and moment. The image encapsulates the beauty of nature and the model- allowing “fs” to reiterate this in the description.

This picture clearly showcases the model’s stunning hair. The salon-styled glossy hair is celebrated with many hashtags in the description. “fs” is amongst the labels, emphasizing the beauty and glamor of the image and style.

In this example “fs” is used as “free stuff’, with the creator and model promoting paid items from a clothing brand. She includes “Fs” as a hashtag too. To ensure there is no confusion, “free stuff” is also included as a hashtag. This post shows the versatility of this acronym.


“Fs” subtly and effortlessly conveys relatability and community. With its generally easy and relaxed undertones, “Fs” can be dropped into any conversation.

However, it should not be overused. Since it is so easily applicable, it can lend itself to lazy or half-hearted communication. More caution should be taken when using the acronym to communicate any of its other meanings. For clear communication, consider including the full meaning as a hashtag, where possible. 

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David Adler is an entrepreneur and freelance blog post writer who enjoys writing about business, entrepreneurship, travel and the influencer marketing space.

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