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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
this is so funny
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "this is so funny" is correct and usable in written English.
You can use it when expressing amusement or laughter about a situation, joke, or comment. Example: "I just watched that comedy sketch, and I can't stop laughing. This is so funny!"
✓ Grammatically correct
News & Media
Alternative expressions(3)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
11 human-written examples
This is so funny - Hacker should make more songs like this.
News & Media
As with all great comedy, exactly why this is so funny is hard to explain.
News & Media
"I told him, 'No, but I can fake it.' He said, and this is so funny: 'That's fine.
News & Media
Any ideas?" NickMom Watcher: "Wait, you guys, this is so funny: Last night on 'Parental Discretion,' Stefanie asked a tattoo parlor dude for a full frontal tattoo of an apron".
News & Media
Lol this is so funny!!!!!!!!
News & Media
this is so funny can't stop laughing.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
49 human-written examples
Update: Apparently Groupon didn't think this was so funny.
News & Media
My friend thought this was so funny that she posted an update on Facebook, and I clicked the Like button.
News & Media
Although this brutality brought worldwide condemnation, a well-known sheikh appeared on a religious channel with two Salafi sheikhs and the three of them thought that this was so funny that they had trouble controlling their laughter.
News & Media
What is it, exactly, that is so funny about this tweet by Martha Stewart?
News & Media
"This story is so funny.
News & Media
Expert writing Tips
Best practice
Use "this is so funny" in informal settings or when reacting spontaneously to something humorous. It's best suited for expressing immediate amusement.
Common error
Avoid using "this is so funny" in formal writing or professional settings. It can sound unprofessional or inappropriate. Opt for more sophisticated expressions of amusement such as "this is quite amusing" or "this is rather humorous".
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "this is so funny" serves as an interjection expressing immediate amusement or laughter. It functions to communicate a positive reaction to something perceived as humorous, as validated by Ludwig.
Frequent in
News & Media
60%
Wiki
20%
Academia
20%
Less common in
Science
0%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "this is so funny" is a commonly used, grammatically correct expression for conveying amusement. As confirmed by Ludwig, it is most appropriate for informal contexts and expresses a spontaneous, positive reaction to something humorous. While widely used in news, media and wiki sources, as showcased by Ludwig, it should be avoided in formal writing. Alternatives like "that's hilarious" or "that's amusing" may be more suitable depending on the specific situation.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that's hilarious
Replaces "so funny" with a synonym that implies extreme amusement.
that cracks me up
Focuses on the personal reaction of laughter or amusement.
that's a riot
Indicates that something is extremely funny and causes a lot of laughter.
that's too much
Expresses being overwhelmed with amusement; often used hyperbolically.
that's side-splitting
Highlights the intensity of laughter caused by something.
that's amusing
Uses a milder term to describe the source of amusement; implies gentle humor.
that's priceless
Suggests that the humor is so good it's invaluable or irreplaceable.
that's comical
Highlights the element of comedy or absurdity in the situation.
that's a hoot
An informal term for something that is very funny or entertaining.
that's a stitch
An informal expression suggesting something is highly entertaining or amusing.
FAQs
What can I say instead of "this is so funny"?
You can use alternatives like "that's hilarious", "that's amusing", or "that's comical" depending on the context.
Is "this is so funny" appropriate for formal writing?
No, "this is so funny" is generally considered too informal for formal writing. Use more sophisticated alternatives such as "this is quite amusing" or "this is rather humorous".
How do I use "this is so funny" in a sentence?
You can use "this is so funny" as a direct reaction to something humorous. For example, "I just saw that meme, and this is so funny!"
What is the difference between "this is so funny" and "this is hilarious"?
While both express amusement, "this is hilarious" implies a higher degree of amusement or laughter compared to "this is so funny".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested