The Laughing Joe meme goes all the way back to 1904.
In a poem by Palmer Cox in the June 15, 1904 edition of the Sydney Mail, "Laughing Joe" is a "great philosopher / Lived years and years ago; / And such a merry soul was he / They called him Laughing Joe."
This is the new version of Laughing Joe, inspired by Vice President Joe Biden's laugh-filled debate last night:
lol @ last night
lol @ last night-- Laughing Joe Biden