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(with reference to dwile flonking and welly wanging..)
Which are... ?

The sport of dwile flonking is classified as a "pub game", but the only time I witnessed it, it took place in the village square in conjunction with other traditional revelries
See http://www.worldwidewords.org/weirdwords/ww-dwi1.htm for a fuller description
Welly wanging derives from "Wellington" (a type of calf-length or knee-length rubber boot favoured by farmers and the country/Landrover set) and "wanging" (somewhat archaic English slang for throwing) - thus "boot throwing". While this may sound trivial, it is difficult to do well because the clumsy physical characteristics of such boots makes it hard to project them with any force.
Neither sport is being proposed for Olympic status at this time.
Jitze
Hello all, I would need anyone's help to understand the meaning of a line in a TV show I'm currently ... It's gonna sweep the nation. If anyone understand what is funny or relevant in these lines, please please, help me!

Perhaps there is nothing funny in the words. Perhaps the character saying this is so improbable as a predictor of trends that it is funny that he thinks he knows one. Perhaps the joke is set up earlier in the show and this is a much later pay-off of the set-up.

There doesn't seem to be anything funny in this dialogue as it is presented.
Students: Are you brave enough to let our tutors analyse your pronunciation?
I found the solution. If anyone's curious about it : http://deezlarson.tripod.com/dookierules.html

Aha! What I surmised - the leftpondian cultural equivalent of the British "Dwile Flonking" and "Welly Wanging".

The Australian kind of Dookie Ball is found at the link at the top of this page:
http://news.mcmedia.com.au/slideshow archive.asp

Regards
John
for mail: my initials plus those of alt.usage.english at tpg dot com dot au