noun
gaffe
GAF/ɡæf/
An embarrassing social or public mistake.
The guest realizes her gaffe when she stands beside the bride in a similar gown.

Etymology
French gaffe, “clumsy remark,” is only a possible source of the English word. Its earlier meaning was “boat hook,” but the connection to a social blunder is obscure; British slang origins have also been proposed.
In context
there's a famous uh quote that uh a gaffe in washington is when a politician actually tells the truth
More examples
- The mayor apologizes for a gaffe during her speech.
- He laughs off his gaffe and introduces the guest again.
- Forgetting the host's name is one of several gaffes she makes.
Forms
gaffe · gaffes