We found one dictionary that defines the word upper-crusters:

General (1 matching dictionary)

1. upper-crusters: Merriam-Webster

▸ Words similar to upper-crusters ▸ Usage examples for upper-crusters ▸ Idioms related to upper-crusters ▸ Wikipedia articles (New!) ▸ Words that often appear near upper-crusters ▸ Rhymes of upper-crusters ▸ Invented words related to upper-crusters