Answer
choeje imgeum(whici means ‘minimum Wage’ in korean)
Explanation&Learning Korean
This joke is a play on words. “최저임금” (choeje imgeum) means “minimum wage” in Korean. However, it can also be interpreted as “the lowest king” when broken down into “최저 (the lowest)” and “임금 (king).” The humor arises from the double meaning of “최저임금” as both “minimum wage” and “the lowest king,” making it a typical Korean dad joke.