What Does It Mean?

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From our dictionary:
Sturm und Drang

(shtoorm" oont dräng')

1. a style or movement of German literature of the latter half of the 18th century: characterized chiefly by impetuosity of manner, exaltation of individual sensibility and intuitive perception, opposition to established forms of society and thought, and extreme nationalism.
2. tumult; turmoil; upheaval.