Answer: fauxpas

AnswerCrossword Clue
FAUXPAS

Slip

FAUXPAS

Blunder

FAUXPAS

Breach of etiquette

FAUXPAS
Elbows on the table, say
FAUXPAS
Eating peas with a knife, say
FAUXPASSocial no-no
FAUXPASImpropriety
FAUXPASSocial blunder
FAUXPASMistake.
FAUXPASA breach of etiquette.
FAUXPASTactless remark.
FAUXPASSocial blunder.
FAUXPASIndiscretion.
FAUXPASSAP
FAUXPASWearing white after Labor Day, e.g.
FAUXPASGaffe
FAUXPASSlurping one's soup, say
FAUXPASSocial gaffe