I'm sure we can all list examples. Maybe it's in a song title or lyric. Confused about a title (wondering what drugs they were doing when they came up with it)? Or maybe a particular lyric, like the classic "Blinded By The Light", and the singers garbled pronunciation, especially of the word "deuce" which has led many fans to interpret it as ******.
I was listening to the Beatle's Let It Be on the way to work. Now I have always appreciated Lennon's sarcastic whit. But some of his songs have always had me scratching my head as to what was going through his mind. One of those is "I Dig A Pony".
Lennon would later comment that he thought the song was "a piece of garbage", though he has shown similar scorn for many of his songs. It was supposedly written for Yoko. Yoko is many things; but I never saw her as a pony.
Other examples of what many say was Lennon's poetic ambiguity ....
And Your Bird Can Sing
Everybodys Got Something To Hide Except For Me And My Monkey