Or should that be "mixed-up" metaphors?
 
I just heard a song with the line "Like a jet plane landing, the pain is overwhelming."  Um, ok.  So, did this plane land on you or what?  They don't call a crash a landing so that's not it...  I don't know about the rest of you, but I'm failing to see how a jet plane landing can cause overwhelming pain (unless, perhaps, some guy's mother-in-law was on that plane coming for a visit?).
 
That said, maybe we can come up with some good ones on our own?  Ya?  Not intentional mash-ups like "That guy upstairs is sharp as a marble!" but more along the lines of "Like putting jam on a roll, my feet kept getting colder!"
 
So, got any interesting ones?  It might be fun to make a song out of some of them eventually...

I'm going to have to chew on the biscuit a little in order to get my head round this hurdle.

So what you are proposing is like a game of Ker-Plunk where if you pull out the wrong stick everything goes up in smoke?

I think I'm warming to the idea now, much like a salmon in the moulting season.
 

Loves is a rollercoaster, kicking you like a mule.
 
(four the fourfer)

Lead with the chin and show 'em your arse.

Straummy will have loads of these once he's googled the lights out.

craigb
Or should that be "mixed-up" metaphors?
 
I just heard a song with the line "Like a jet plane landing, the pain is overwhelming."  Um, ok.  So, did this plane land on you or what?  They don't call a crash a landing so that's not it...  I don't know about the rest of you, but I'm failing to see how a jet plane landing can cause overwhelming pain (unless, perhaps, some guy's mother-in-law was on that plane coming for a visit?).
 
That said, maybe we can come up with some good ones on our own?  Ya?  Not intentional mash-ups like "That guy upstairs is sharp as a marble!" but more along the lines of "Like putting jam on a roll, my feet kept getting colder!"
 
So, got any interesting ones?  It might be fun to make a song out of some of them eventually...

That is a long, long way to go just for a rhyme.  Having said that, I like the in-law idea.  It could also be a loved one leaving, a la By The Time I Get To Phoenix or Leaving On A Jet Plane.  
 
Are you looking for bad metaphors in songs,  idioms, or completely original phrases?  

Like loves gentlest caress she came crashing headlong through the wall.

Old55
 
Are you looking for bad metaphors in songs,  idioms, or completely original phrases?  

Sure!
 
I just thought the lyric was interesting yet completely nonsensical.
 
The Bouy is on the right train to getting his bangers and mash.