From Longman Dictionary of Contemporary English(at) fever pitch(at) fever pitchBritish EnglishEXCITED if people’s feelings are at fever pitch, they are extremely excited The nation was at fever pitch in the days leading up to the election. After a night of rioting, tensions in the city reached fever pitch. → fever
Examples from the Corpus
reached fever pitch• Speculation about the deportations have reached fever pitch in Hong Kong.• Public support for the system was waning steadily as accusations of sleaze in high places reached fever pitch.• But as the game's tempo reached fever pitch, Saunders squandered a golden opportunity to grab an equaliser.• In 1989, an 11-year-old girl was killed by two Rotties and public terror reached fever pitch. 