What is the meaning of Bugger?

A heretic.

Someone who commits buggery; a sodomite.

A foolish or worthless person or thing; a despicable person.

A situation that is aggravating or causes dismay; a pain.

Someone viewed with affection; a chap.

A damn, anything at all.

Someone who is very fond of something

A whippersnapper, a tyke.

To have anal sex with, sodomize.

To break or ruin.

Expressing contemptuous dismissal of the grammatical object.

An expression of annoyance or displeasure.

One who sets a bug ; one who bugs.

to malfunction, to glitch

Source: wiktionary.org