On public radio the other day, they were discussing someone making a gaffe or social blunder.
Here is some info on this word
Gaffe means a social blunder or faux pas. It usually entails the use of a tactless remark.
This remark, although usually unintentional, causes embarrassment to the originator of said comment.
Secondarily, a gaffe can be a blatant mistake or misjudgment.
The word is French in origin (from Old French word gaff), and means hook. Maybe you should get the hook if you commit a gaffe.