Hard to narrow it down, but, "I'm sitting at home, digging up bones, exhuming things that's better left alone" (Randy Travis) would be in the running.
"You're the reason our kids are ugly" (Conway & Lorretta) probably would be too.
This whole song (CW McCall) is full of them, but I like this part the best..
"Sign says clearance to the twelve foot line But the chickens was stacked to thirteen nine Well, we shot that tunnel at a hundred and ten Like gas through a funnel and eggs through a hen We took that top row of chickens off slicker than the scum off a Louisiana swamp"
