upend

Short definition from Wiktionary

Verb

1. 1
   To end up; to set on end.
2. 2
   To tip or turn over.
3. 3
   To destroy, invalidate, overthrow, or defeat.
4. 4
   To affect or upset drastically.

Proper noun

1. 1
   A hamlet in Kirtling parish, East Cambridgeshire district, Cambridgeshire, England (OS grid ref TL7058).