The wife-beating origin of rule of thumb is false.
I live in the Middle East and have studied the history in-depth, never heard of cats being fed tongues of liars.
Posh is NOT Port Out, Starboard Home, but derives from the Romany word for money- posheen.
I don't see why burying the hatchet has anything to do with Native American peace traditions. It is probably as simple as it sounds. Let's put away our weapons and be friends.