There once was a ship called the Jenkins
Whose Cap'n didn't care much for thinkin'

    When told, "Land ahoy!"
    He screamed out, "Leeeeeeroooy!"

And now he's just sittin' there sinkin'

The long exhautled history behind "Fail" started with failblog.org.  Fail as comedy quickly ensued.  The Leroy Jenkins story is the pinacle of online gamer legend.  I still say it was staged.  Look it up.