ALL THESE DFINITIONS ARE CRUDE AND SILLY!
Twank is just a word derived from the word p'twankyho, which is an expression of feeling. "Twank" can be used to express sudden, spontanious, and impulsive moments of any form of emotion.
-"Oh no. We forgot the hyperdigicalator"
Wow. I really did never know that the word "twanky" was ever used by anyone except us. The truth behind the word is that really, it is derived from "p'twankyho", a way of expressing one's feelings. Twanky has similar meaning, but is used to express slightly different emotion.
A group of people who do exactly what they claim not to. They go around saying - "We're grungers, we don't follow anybody's fashion rules - we wear what we want" (or something similar) And then they go and spend all their money on baggy trousers and boxes of safety pins in order to look exactly the same as their grungie companions. Then they go and make fun of the people who do exactly the same as them but with tight trousers and gold earrings.
(The only grungers who this does not apply to are the ones who don't go around saying "I'm a grunger".)
Grunger - "Shit! I've run out of safety-pin-money!"
Towny - "If you stop making fun of me I'll lend you some of my gold-earring-money"
A self-explanatory word, whose meaning can only be defined as "p'twankyho". This is a word that can be used to express any meaning or feeling, as long as the user really believes in what he or her is saying. For example "You p'twankyho!" could, depending on the feeling behing the exclaimation, be interpreted as an insult, a heart-felt complement, or even just a way of saying "thank you". Variations of this word include p'twank, twanky, and twank.