Lyric discussion by ShepherdofBeing 

When Oasis plays it it means, "Oh how I wish I had a fraction of the talent necessary to come close to John Lennon at his worst."

In short, it means what all Oasis songs mean.

The fact that they (or anybody) would cover this particular song is simply dumb. If you want to wear one of Lennon's intensely personal statements like a Halloween mask, at least pick a good one: "God," "Beautiful Boy," something like that.

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