patagium 

The flap of skin that a flying squirrel uses to fly

When it landed, the flying squirrel ripped it's patagium

patagium by Seany Peaks January 6, 2003

Patagium 

The skin between the fore and hind legs of a flying squirrel which enables them to fly!

She was so aluring to the closed eyes, he realised she was the patagium that helped him find his nutz;)

Patagium by Flyingsqurrelsfoundthiernutz! June 14, 2010