Definitions by Vagbubbles

Flubberduck 

When you need to wank and it makes a weird noise which sounds like a rubber duck and flubber

I tried to wank last night but I was flubberducking so loud that my mum walked in.

Dude, I can hear your flubberduck from across the hall.

Stop flubberducking John we're at the cinema

Flubberduck by Vagbubbles December 6, 2013