In Yoda style, it's not YOLO, but OOYL: Only Once You Live. Here is some more Yoda Language Humor, and scroll on down for some YOLO humor in the Indian Epics class.
This is a meme someone made in the Indian Epics class... in a world of (re)incarnations, no more YOLO. It's YOLMT.
I never learned how to diagram sentences in school, but I do remember having a lot of imitating Yoda-speak. You can find out more about both topics at Wikipedia: diagramming sentences and in the article on OSV (object-subject-verb) languages, which is the kind of English that Yoda speaks.