From Longman Dictionary of Contemporary Englishstrike on/upon something phrasal verbFIND formal to discover something or have a good idea about something → be struck on somebody/something at struck2 → strike→ See Verb table
Examples from the Corpus
strike on/upon • They ended their strike on Dec. 13.• Students of Belgrade University went on strike on June 14, supported in their demands by the teaching staff.• I was struck on one of my artificial legs, damaging the calliper.• In the course of their struggle to find longitude, scientists struck upon other discoveries that changed their view of the universe.• He himself, by the surprise carrier strike on Pearl Harbor, had set an example which the enemy might follow.• He was struck on the head with a club.• Ford strike on Thursday A strike by Ford Motor Company white collar workers will go ahead on Thursday due to possible redundancies.• We had a one-day strike on, you see. 