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Modern take on Mrs Trunchbull's updo hairstyle (as seen in Roald Dahl's Matilda); usually sported by image-conscious teens and 20-somethings with nothing better to do than sculpt wanky hairstyles; is always worn as a bun, but may also feature carefully crafted wisps of hair to frame the face.
In the event you're genuinely impressed by the supertrunch; "Hey, nice supertrunch!"

In the event you think the supertrunch is a tryhard; "Is that a supertrunch, or are ferrets back in fashion?"
by anelaar April 05, 2010
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