Question

Fly off the Handle to lose your temper; to become furiously angry

Accepted Answer

When Dr. Anthony discovered that someone had sneaked a look at the report cards, he really flew off the handle. Many Americans in the early 1800s used handmade tools with axheads to chop down trees and build houses. The tools were often crudely made and the axhead would fly off the handle during furious chopping. The flying axhead is much like an angry person out of control.

Idiom	Fly off the Handle
Example	When Dr. Anthony discovered that someone had sneaked a look at the report cards, he really flew off the handle.
Meaning	to lose your temper; to become furiously angry
Origin	Many Americans in the early 1800s used handmade tools with axheads to chop down trees and build houses. The tools were often crudely made and the axhead would fly off the handle during furious chopping. The flying axhead is much like an angry person out of control.

Handle Fly Angry Tools Axhead Dr Anthony Discovered