Windows XP

What were Stephen Hawking's last words?

The Windows XP log out sound.

Word
Log
Stephen Hawking
Computer
Last Word
Death

Explanation

Explain Bear

Listen up, buttercup. The joke plays on the fact that Stephen Hawking used a computer to speak. Windows XP is an old computer operating system that made a distinctive sound when it shut down. The joke suggests his last words were that sound as a dark take of his death (he is dead, after all). This is funny because you didn't expect that answer, you big dummy!