The lights are on, but there is no-one at the wheel

 A Malaphor is the blending of idioms or clichés into something silly and possibly absurd.

• Airbrushed under the carpet
• We'll burn that bridge when we get to it
• It's not rocket surgery
• Until the cows freeze over
• There's more than one way to swing a cat in here
• The road to hell wasn't paved in a day
• A bird in the hand gets the worm
• A golden opportunity on a silver platter
• Does the Pope shit in the woods
• I wouldn't trust her with a ten foot pole
• Give them an inch, they'll take the cake
• Let them eat the rich
• Snug as a bug swept under the rug
• You can't teach sleeping dogs new tricks
• Beauty is in the eye of the tiger