"...with all I said along the steppy hill."

The story:

Not so embarassing. My friend & I were trying to coordinate the guitar & bass parts of the song so we could perform it, and that lyric kept bugging me, so I asked him his thoughts on it. After a few reviews of his iPod, he came up with "steppy hill."

(I also heard a similar "Ham & Mustard Chain" as another fellow who heard "Ham & Mustard Shake," but both mondegreens were more laughs between my friend & I than actual flubs.)