Yope

A combination of “yes” and “nope” which is used to sarcastically agree with someone, different to the prior definition which is to confirm a negative statement.

Annoying Friend: “Oh! and on Halloween we can all be unicorns and.... put glitter on the toffee apples!”
You: (Looking at your other friends as if to say, “are they crazy, lmao”) “Yope”