"Let's talk in the back 40"
That makes no sense
Seize the day
"A pig in a poke"
Just between us
"Put lipstick on the pig"
"Make hay while the sun is shining"
"That makes as much sense as government cheese"
Let's talk in private
Make superficial changes to something bad/ugly in a fruitless effort to improve it
"You, me and the fence post"
To tell someone the unvarnished truth
"[To tell someone] how the cow ate the cabbage"
An offer that is foolishly accepted without first being examined
