Yeah, this is common joke, especially when you feel ambivalent.
Examples:
"Do you want to go out for dinner tonight? Or should we stay in and save money?"
"Do you want cake or ice cream for dessert?"
"Should we prioritize this bug fix or focus on hitting our release target?"
Somebody might reply with tongue in cheek, "Yes", to indicate they agree with both parts, want both things, it's not a simple choice, etc.
FWIW, I encounter it more with older people. As a kid, I heard it often from uncles and grandparents.
Examples: "Do you want to go out for dinner tonight? Or should we stay in and save money?" "Do you want cake or ice cream for dessert?" "Should we prioritize this bug fix or focus on hitting our release target?"
Somebody might reply with tongue in cheek, "Yes", to indicate they agree with both parts, want both things, it's not a simple choice, etc.
FWIW, I encounter it more with older people. As a kid, I heard it often from uncles and grandparents.