Part of the joy and pleasure of English is its boundless...

Part of the joy and pleasure of English is its boundless creativity: I can describe a new machine as bicyclish, I can say that I'm vitamining myself to stave off a cold, I can complain that someone is the smilingest person I've ever seen, and I can decide, out of the blue, that 'fetch' is now the word I want to use to mean 'cool.'