The Culo is basically a Burner initiated in normal rather than switch stance.
It is another freestyle move that uses the explosive power of popping backwinded after ducking the sail.
Here is Kiri Thode with an explanation:
A quick recap:
- Sail very powered on flat water
- Unhook and throw the sail into the wind to duck (like a duck tack)
- Bend your knees to pop the board
- Throw the sail around pushing on the back hand and bringing the front hand close
- Follow the equipment around to land
- Either flip the sail and sail out in the same direction or hold on to gybe the board