Bedroom battle (6,5)
I believe the answer is:
pillow fight
(Other definitions for pillow fight that I've seen before include "Dormitory battle" , "Bedroom conflict" , "Bedroom battle (where feathers fly?)" , "Mock battle in bedroom" .)
I believe the answer is:
pillow fight
(Other definitions for pillow fight that I've seen before include "Dormitory battle" , "Bedroom conflict" , "Bedroom battle (where feathers fly?)" , "Mock battle in bedroom" .)