Your palm is full of meat. The next sentence.

The next sentence can be "It hurts to cut any one".

The sentence "The palm and the back of the hand are both meat, and it hurts to cut any one" expresses that the palm and the back of the hand are both part of the body, just like cutting meat, which will make people feel distressed. It is also often used to describe people who feel sad and distressed when faced with choices, no matter which one they choose.