There's a bathroom on the right

When she was a child, the American writer Sylvia Wright recalled, her mother read aloud to her from "Reliques of Ancient English Poetry," and one of her favorite poems began, as she remembered:

Ye Highlands and ye Lowlands,
Oh, where hae ye been?
They hae slain the Earl O'Murray,
And Lady Mondegreen.

The actual fourth line is, "And laid him on the green."

In an essay in 1954, "The Death of Lady Mondegreen," Wright  explained the need for a new term. "The point about what I shall hereafter call mondegreens, since no one else has thought up a word for them, is that they are better than the original."

Among the more well-known mondegreens:

• Surely Good Mrs. Murphy shall follow me all the days of my life ("Surely goodness and mercy…" from Psalm 23)
• Gladly, the cross-eyed bear(from the line in the hymn, "Keep Thou My Way" ("Kept by Thy tender care, gladly the cross I'll bear")
• 'Scuse me while I kiss this guy (from a lyric in the song "Purple Haze", by Jimi Hendrix: "'Scuse me while I kiss the sky").

And, of course ...

There's a bathroom on the right (the line at the end of each verse of "Bad Moon Rising" by Creedence Clearwater Revival: "There's a bad moon on the rise") 

And a few more:

• "The girl with colitis goes by." (Real lyric: "The girl with kaleidoscope eyes," Beatles)
• "Olive, the other reindeer." (Real lyric: "All of the other reindeer.")
• "The ants are my friends, they're blowing in the wind." (Real lyric: "The answer is blowing in the wind," Bob Dylan.)
• "There's a wino down the road." (Real lyric: "And as we wind on down the road," Led Zeppelin.)
• "In a glob of Velveeta, honey." (Real lyric: "In-A-Gadda Da Vida," a.k.a., "In the garden of Eden," Iron Butterfly.)