Because Dracula was coffin. Source: A Laffy Taffy wrapper.
Are you coffin
By his coffin!
They'll tell you! (Source: am an engineer)
Best vicious of the season
By his coughin'
His ears! Yes, this is a real joke I got from a Laffy Taffy wrapper today, not 30 years ago. I did not laugh.
They both take away the coffin.