potato crisp

noun[in the plural]1

1. •
   (UK, Ireland) A thin slice of potato that has been deep-fried until it is brittle and crispy, and which is eaten when cool; they are typically packaged and sold as a snack.

   • Edward, give me another of those delicious olives. / What's that? Potato crisps? No, I can't endure them. — 1949