Help with a Taiwanese expression I had friends from Taiwan many years ago who often used an expression that seemed to mean something like "praising an idol, or bowing down" not sure. Sometimes said with a bowing down motion. It was always meant to be funny when I said something funny, clever or stupid. It sounds like "Oh mee doe voh" Stress or high tone was on "mee". I have always wondered what exactly it meant in Chinese. I just never bothered to ask.  Any native Taiwanese help would be appreciated. Thanks.
It refers to 阿彌陀佛, the Amitabha Buddha.

You describe the colloquial usage of the term quite accurately.

Most of the time, the term is used not to refer to the Buddha itself, but to create comedic effect in speech.