To me, the rule is there to prevent people from taking someone down in grapples in an uncontrolled manner. You can use martial-arts style thows if you guide the person to the ground, basically, but don't fling them around.
I guess specific wording would be "A throw is using body-on-body contact to make your opponent hit the ground in a forceful manner."
Osiris wrote:My personal idea is that it is any technique which lifts a person off their feet.
Though I doubt you meant this, the wording you gave as an example could be stretched to include shield bashes, and I'd hate to see the "no throws" rule interpreted to exclude bashes. It's too fun watching the pink-lunged runners fly through the air when one of our bigger guys gets a solid bash on 'em.