Why Do Koreans Say Fighting?

Ever wonder why Koreans say "fighting"? If you watch Korean tv shows or movies, you've likely heard it more than once. It's obvious what they mean by why do this say it?

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Why Do Koreans Say Fighting? - LearnKorean24

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How did fighting become the Korean word for Good luck or Let's go? : r/korea

Why South Koreans Say 'Hwighting!

Why South Koreans Say 'Hwighting!

Full article: 'I would rather say fighting ㅋㅋ': discursive analysis of Korean-English language exchange students' text messages