1: The term used to describe ejaculation after suffering extreme trauma. If you are stepped on in the groin, and squirt a little out, you've been hendoed.
2: Tom Henderson, an extremely famous philanthropist living in the South Australian area.
3: A swag belonging to the latter.
A: A brick is dropped on your groin, this may result in ejaculation due to trauma, this is a Hendo.
B: Hendo is legend (amongst no one) in SA.
C: The Khaki swag is usually targeted for dumping on.