A person who laughs like Blanche Barrow from the movie 'Bonnie and Clyde.' This laugh was so amazing that the actress who played Blanche actually won best supporting actress that year. To honor her memory, a schwa cries, "Heh heh heh" in similar fashion.
Friend 1: "Hey, is that a new magazine?"
Friend 2 (a schwa): "Heh heh heh."