it is pronounced 'gosh' O my Gosh!!- she reacted to his gauche behaviour.
South American GAUCHOS (cowboys) lack grace.
Sound like Gosh.. somewon who eat GOSHT lacks social values
GAUCHE=GAAV+CHE. CHE, he is from GAAV, he is tactless/dont have the grace.
Tanya Gosh(gauche) is a clumsy girl who always spilt coffee over others while serving.
similar to gaucherie
gauche sound like douche(douchebag)..