Duck dump valve
A dump valve is a performance part on a turbo car that vents excess turbo pressure. It normally makes a "woosh" noise, but when fitted with a duck-quacker....
( Mr Gear - the only black guy on B3ta, Tue 30 Jun 2009, 13:30, Reply)

Hahahaha!
And ironically, it would make you sound less of a wanker than the normal dump valve noise.
(Kerrisis, Tue 30 Jun 2009, 13:40, Reply)

I can't watch it at work
but am amusing myself by imagining what it sounds like :)
( t0ria rock me Joe, Tue 30 Jun 2009, 13:48, Reply)

Imagine Donald Duck being buggered
and the quacking sound he would make - you would be about there.
(mrmatt up yer chuff since, Tue 30 Jun 2009, 13:53, Reply)

Couldn't have said it better myself

( ERG1008 Ich heiße Superphantastisch, Tue 30 Jun 2009, 14:47, Reply)

Simple and amusing

( pobblepop, Tue 30 Jun 2009, 13:49, Reply)

Arf :D
Like it

mrmatt spot in with the description of what it sounds like too!
( LemonEntryMyDearWatson This time, Moriarty, the hand is on the other foot, Tue 30 Jun 2009, 17:19, Reply)

All chavved up Corsa's should be forced to have one of these fitted by law
I laughed - a lot
(yorik, Tue 30 Jun 2009, 23:51, Reply)