Did like French "create" inappropriate wordings? why French??
3#
2016-05-13
It was used to "cover up" a slip up by disguising the profanity as "French". Like for example, if your child heard you say the S word, you might say that so that he wouldnt know what you said. That was given up on a long time ago, when the children began showing off their "foreign language skills" in public, humiliating their parents. But the phrase stuck, and now it is simply an idiom for profanity.
6#
2016-05-13
To pardon oneself of foul language. It can mean to pardon oneself of going against the grain of social establishment, political correctness, fundamental beliefs, or popular culture