Debugging

Inventors and engineers had been talking about bugs for more than a century before the moth-in-the-relay incident. Even Thomas Edison used the word. It's a word that has survived in obscure terms like bugaboo and bugbear and in a mangled form in the word boogeyman. Like gremlins in machinery, system bugs are malicious. And that's the real origin of the term bug.

Bugger - one who installs electronic bugs.

buggery - anal intercourse between a man and another man

(The American Heritage® Dictionary of the English Language, Fourth Edition copyright)

The Bug - https://www.youtube.com/watch?v=zwmUOJR-GwA