“Narrative” is holding a contest for a six-word story. They had this to say about the form.
“William Faulkner famously said that a novelist is a failed short story writer, and a short story writer is a failed poet. Hemingway, with his creation of the six-word story, combined poetry and drama into a short form that has grown in popularity while remaining difficult to achieve.”
If you would like to participate, here’s the link: http://www.narrativemagazine.com/node/83577.