jiminy rickets

An exclamation:
Indicates dismay or disbelief.

Can replace "jesus christ" or "oy vey" in exclamation form in most contexts.

Person A: "You hear what happened in class today?"
Person B: "Um... no?"
Person A: "This guy got expelled for having a BB gun in his zoom class"
Person B: "Jiminy rickets..." *slaps palm into face*