crass vs frou-frou

crass

• Lacking finesse; crude and obvious. 

• materialistic 

• dense 

• coarse; crude; unrefined or insensitive; lacking discrimination 

frou-frou

• Unimportant, silly, useless. 

• Liable to create the sound of rustling cloth, similar to 19th-century dresses. 

• Highly ornamented, overly elaborate; excessively girly. 

• A rustling sound, particularly the rustling of a large silk dress. 

• To move with the sound of rustling dresses.