His gauche table manners make me cringe, especially when he tries to talk with his mouth full.

Because everyone assumed that he is just a typical gauche adolescent, no one believed he could have produced such a sophisticated work of art.

Even though the comic’s act was crude and gauche, he filled the club to overflowing every night.

Despite his promise that he would stay awake during the entire opera, Carl was already producing a gauche snorting sound within fifteen minutes of the overture.

Although Selena made several gauche attempts to fit in with the popular crowd, at lunchtime she always found herself stuck at the table with the nerds.

Flannery O’Connor was well-known for creating stories that featured grotesque characters with gauche behaviors.

Many of the old families in town are horrified by the gauche upstarts who are using new money to tear down classic old homes to build modern eyesores.

Most young ladies avoid going into that bar because they have a particularly gauche clientele who don’t care about following the simplest rules of etiquette.

It’s simply a matter of taste whether you believe that a vacation in Las Vegas is a grand adventure or an exercise in gauche excessiveness.

While Sherrie didn’t want to seem gauche, she felt she had to ask her blind date if they were going for their own dinner bills.