It's a Midwest thing. When someone cuts in front of you rudely, when you are surprised, when you bump into someone, or when something is offensively funny, you use the word ope.

(noun) -An interjection of surprise after an unexpected event occured. It can be for either bad or good connotation depending on the situation.

1: A reaction for something small but silly happening.

2: Said after a witty remark.

An expression used when a mistake is made by a Midwesterner; an accidental blend of 'oops' with the Midwestern expression: 'ope.'

or 'opez', used as replacement for 'oops' as in when one makez a mistake.

Opium or any opiate/opioid (oxycodone, codeine, hydrocodone, heroin, morphine, fentanyl.. whatever)

This word is an exclamation, used to convey the sense of having forgotten something and then suddently remembered.