Six of one and half a dozen of the other.
Swings and Roundabouts.
Shank's Pony.
On the Lamb.
Cut and Run.
Give (or get) the cold shoulder.
Social Standing.
Pig in a Poke.
That's let the cat out of the bag.
Enjoy!
could you please put the meanings here?
None of these are in any way slang.
They are common idioms and expressions.
(And you mean 'on the lam'.)
Rover