The first thing people usually informally learn when engaging with a new language, is how to drop an F-bomb, but it isn’t always as easy as you’d think.
The Japanese apparently struggle to get their English profanities out sometimes, as there’s even a Japanese book titled How to Use “Fuck” Correctly; so an Englishman by the name of Chris Broad picked up a copy and took it upon himself to teach the Japanese how to get that foul word to roll off their tongues as smoothly as possible.