GEEZ

(informal) an exclamation or mild oath. —HDA Tapes (Oakland Lectures) Approved Glossary (16.4.92)

(informal) an exclamation or mild oath.an exclamation expressing annoyance, anger, surprise, emphasis, discovery, etc. Geez is a milder word used in the place of "Jesus" and originated in the US in the 1900s or earlier.