Sexual maneuver in which the male quickly and forcefully thrusts his erect member in and out of his partner's throat, causing the partner to projectile vomit while making a rapid-fire gagging noise, the scene akin to feeding logs into a running wood chipper.
The Australian Aboriginal Pancake Helicopter Woodchipper is when you lie in the middle of the Australian desert with a naked Aboriginal man with a meth addiction on top of you and have him spin his dick around inside your anus like a helicopter as he chants and plays the didgeridoo. Then you are to squat in a sumo stance and scream out "TIMBERRR!" as you fart out all the contents from your shart drain. This is best done at 8am as it minimises dehydration for the woodchipping process.
Oi Dylan mate, just got me some sheila and did a fat pancake on her. She blasted so much at my face I look like Andrew with how many freckles I got!
Mate, we should call it the Australian Aboriginal Pancake Helicopter Woodchipper!