To be the first one of a group to fail, die, sell out, move on, etc.
ALSO
Used interchangeably with Yoko Ono; to forsake your friends, band, etc. for a woman.
We'd agreed to all stay friends after graduation, but then Eddie got a job in Tulsa and John Lennoned on us. At least he wasn't like Jim. That dude totally Yoko Ono'd with that skank Sherry.
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