It goes like this, look at the last poster's word, think of another word that has absolutely no connection with is whatsoever, then post it.
For example, the previous poster may have posted the word 'Hovercraft'. So I think of another word that has absolutely nothing to do with a Hovercraft, then I post it. Simples
. For example I could have chosen Buttercup, Trumpet or Cushion. Well....actually not Cushion because an air-cushion does have a connection to Hovercrafts. See, it's not so easy as it looks
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So here goes with the first one: Samosa