pwuff

Onomatopoeia: The sound a pillow makes when you hit someone with it.

Derived from a combination of the onomatopoeic 'pow' and the noun 'fluff' (noun: 1. light, downy particles. 2. a soft, light, downy mass.)

She grabbed a pillow from the bed and snuck up behind him. Pwuff! She got him right in the face!

by VirtualPillowFight=Win February 12, 2011