bugger

A bugger is a person you don't like.

Example: He was wearing his hat in church, so I yelled, "Take your hat off, you silly bugger.

You say "bugger it" to show that you are very angry or that you don't care.

You say "bugger me" or "I'm buggered" to show that you're very surprised.

If you bugger somebody, you have anal sex with them.

You say "bugger off" you want someone to leave you alone.