v.

become turned or set on end

"the airplanes upended"

set, turn, or stand on end

"upend the box and empty the contents"

Saks Upends Luxury Market With Strategy to Slash Prices
US Supreme Court upends diagnostics patents
PSYCHOLOGY. Mechanical Turk upends social sciences
Climate change upends selection on ornamentation in a wild bird
The Uniform Probate Code Upends the Law of Remainders
A Drug-Dealing Robot That Upends the Pharmacy Model - Innovation Insights
The #Spill effect : Twitter hashtag upends Australian political journalism
Scientific misconduct. Fraud upends oral cancer field, casting doubt on prevention trial.
BREAKING BANKRUPTCY PRIORITY: HOW RENT-SEEKING UPENDS THE CREDITORS' BARGAIN
Risk and Externalisation in Afghanistan : why Statebuilding upends State-formation