I'll be buggered by a bear - A dumb way to say you're surprised. Like when your teacher y

A dumb way to say you're surprised. Like when your teacher yells at you for no reason.

I'll be buggered by a bear! My teacher yelled at me for no reason!

I'll be buggered by a bear! My dog ate my shoes!

I'll be buggered by a bear! My dad got a new tattoo!