Well, the origins are obscure.
Some say it started when a spat broke out beside a vegetable stall in the 1940s.
What`s certain is that it`s the world`s biggest food fight and a major tourist draw.
To ensure it doesn`t turn into "Attack of the Killer Tomatoes!" there are strict rules in place.
No throwing tomatoes that aren`t squashed and no throwing anything that isn`t a tomato.
There`s no dress code, but old T-shirts, perhaps accessorized with goggles seem to be the thing.
There`s a huge after party too.
The booze is advertised as cheap -- probably even cheaper if the order`s a Bloody Mary.
More about: