Or has it gotten stale over the last 5 or 6 thousand years?
Academics have compiled a list of the most ancient gags and the oldest, harking back to 1900BC, is a Sumerian proverb from what is now southern Iraq.
"Something which has never occurred since time immemorial; a young woman did not fart in her husband's lap," goes the joke.
Still I think it may need more context....