Colloquialisms

[dodge man]

You can’t swing a dead cat without hitting a …….. This is used to signify a lot of something. An example. You can’t swing a dead cat without hitting a weed in your garden.

 

[groundcover]

Slicker than snot on a doorknob

 

[Oaktree]

Grinnin' like a mule eatin' briars.

Then there's the ever popular sh*t eating grin.
Gotta wonder where that came from.