Submitted NameRevisions Save Type Surname Usage Japanese (Rare) Pronounced Pron. To-yo-guu-chee [key] Edit Status Status [show contributorshide contributors] Added 10/31/2017 by ShioTanbo1 Edited 7/7/2018 by ShioTanbo1 Meaning & History Toyo means "Abundant" and Guchi means "Mouth,Opening). Megumi Toyoguchi is a well-known radio personality and voice actress.