You have probably seen a forum game similar to this where each user posts three words to form a story. You should pick up how this game works after a few posts.
Once upon a
time there was
Five hungry sheep...
sitting around playing
in the mud
then they thought
we should buy
the most extravagant
organic mint sauce
and give it
to farmer BoB
to rub on
their tender loins
and his breast
while eating cheese
with the Mrs
while on the