This reply
uienwt mark this message contains misinformation
originally written by uienwt
這是一則多年的謠言了,並不是「Fornication Under Consent of the King」的縮寫。(也另有一說是‘For Unlawful Carnal Knowledge.’)這些故事跟解釋都是錯的。

References

https://www.snopes.com/fact-check/what-the-fuck/
https://www.quora.com/What-is-the-etymology-of-the-word-fuck

What is the etymology of the word "fuck"?

Answer (1 of 14): Have a look at this Ngram, from the ever-useful corpus of Google Books: This is one of many situations where the data can’t be taken at face value - if it was to be believed, “fuck”

https://www.quora.com/What-is-the-etymology-of-the-word-fuck

The content above by Cofacts message reporting chatbot and crowd-sourced fact-checking community is licensed under Creative Commons Attribution-ShareAlike 4.0 (CC BY-SA 4.0), the community name and the provenance link for each item shall be fully cited for further reproduction or redistribution.