chew something ↔ over
From Longman Dictionary of Contemporary Englishchew something ↔ over phrasal verbTHINK ABOUTto think carefully about something for a period of time Let me chew it over for a few days. → chew→ See Verb tableExamples from the Corpuschew over• And the band cooks and splutters, pistons and relaxes, chews things over and lets them ride.• Amelia was chewing it over, undecided.