From Oxford Dictionaries, a quiz: American phrases to confuse Brits. For example (and note the single quotation marks):
If something ‘jumped the shark’, then it:There’s also an Oxford quiz with British phrases to confuse Americans. That quiz is more difficult, objectively speaking.
○ Escaped from a dangerous situation
○ Began a period of inexorable decline in
quality or popularity
○ Avoided payment of overdue loans
○ Went down to Florida for the winter