There are, what I would call, soft swear words in American English also. Frigging instead of fucking, shoot instead of shit, dang instead of damn, dag-nab-it instead of god-damn-it are some that come to my mind. While serving in the US Navy in the nineteen-seventies, I once met a British soldier in Hong Kong with whom my friends and I chatted a bit. He met us on the next day with wife. During that second meeting he asked me why the term son-of-bitch was offensive in American English.
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