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.
A word that is used express one’s forgiveness for their inconvenience or used to express something silly they didn’t mean to do. Mostly this word is used by people who are very polite and live in the upper mid-western states in the US.
Ope, didn’t see ya’ there!
Ope! Sorry.
Ope, gonna sneak right past ya’ here.