What is off the handle?

Fly into a rage; lose control.

When a clumsy mother drops the roach I go off the handle on his ass.

off the handle - video

Off the handle - what is it?

To become angry or enraged.

"I'm Buddy Rich when I fly off the handle!"

What does "off the handle" mean?

Being crazy, insane or stupid.

"Dude your completely off the handle"