interjection

CTFU

see-tee-ef-YOO

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CTFU (interjection) means used in texts and online posts to show that something is extremely funny; the writer is laughing very hard. Example: “CTFU, he really wore that to a job interview.”

interjection

internet slang, vulgar Used in texts and online posts to show that something is extremely funny; the writer is laughing very hard.

"CTFU, he really wore that to a job interview."

"She sent me the video at 2am and I was ctfu."

How to use CTFU

Learner’s notes

In plain EnglishA way of writing that something made you laugh really hard.

When to use it

Casual and profane because of the word it abbreviates; written far more often than said aloud. Common in African American Vernacular English and widespread on social media.

Memory tip

Treat it like LMAO — a reaction dropped into a message, not a word used in a sentence's grammar.

Trace the full origin ↓

Easily confused with

CTFD LMFAO →

Common pairings

ctfu at this I'm ctfu

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C2 · Advanced serendipity Fortunate discoveries made entirely by accident.

Gen Z slang rizz Charm — the ability to attract a romantic interest.

B2 · Intermediate empathy The capacity to share another person’s feelings.

C1 · Advanced nonchalant Casually calm and relaxed; unconcerned.

Internet slang delulu Delusional — believing something against the odds.

Etymology nostalgia Greek nostos “return home” + algos “pain”.

C2 · Advanced serendipity Fortunate discoveries made entirely by accident.

Gen Z slang rizz Charm — the ability to attract a romantic interest.

B2 · Intermediate empathy The capacity to share another person’s feelings.

C1 · Advanced nonchalant Casually calm and relaxed; unconcerned.

Internet slang delulu Delusional — believing something against the odds.

Etymology nostalgia Greek nostos “return home” + algos “pain”.

Test yourself on “CTFU” A quick quiz — meaning, synonyms & usage →

Fill the gap

Can you complete this real example?

_____, he really wore that to a job interview.

Etymology

An initialism of cracking the fuck up.

Origin: English

Synonyms

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LMAO LMFAO ROFL dying

Related words

death lol haha dying anxious mortality demise emergent

Rhymes for CTFU

STFU

See all rhymes for CTFU →

Frequently asked questions

What does CTFU stand for?

Cracking the fuck up, meaning laughing extremely hard. It works the same way as LMAO in a text or comment.

What is the difference between CTFU and CTFD?

They are opposites in tone: CTFU means cracking the fuck up, while CTFD means calm the fuck down. Reading one as the other reverses the message entirely.

What is the meaning of CTFU?

"CTFU" (interjection) means used in texts and online posts to show that something is extremely funny; the writer is laughing very hard.

What is another word for CTFU?

Other words for "CTFU" include LMAO, LMFAO, ROFL, dying.

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death lol haha dying anxious mortality demise emergent