gaucherie

< /ˌgoʊ ʃəˈriz; French goʊʃəˈri/.

1. lack of social grace, sensitivity, or acuteness; awkwardness; crudeness; tactlessness.
2. an act, movement, etc., that is socially graceless, awkward, or tactless.

noun

1. the quality of being gauche
2. a gauche act