What does the phrase 'fly off the handle' mean?

Answer:
Meaning:
Lose self control.
Origin:
This is an American phrase and it alludes to the uncontrolled way a loose axe-head flies off from its handle. It is first found in print in Thomas C. Haliburton's The Attaché; or, Sam Slick in England, 1843/4:
"He flies right off the handle for nothing."
First answer by ID1161749323. Last edit by Warrior of earth. Contributor trust: 36 [recommend contributor recommended]. Question popularity: 2 [recommend question].