What are nerve zingers in the hand?

Shocks: It's more of a slang term describing a sensation felt typically along a specific nerve in the hand/upper extremity. They usually occur when that specific nerve is irritated, compressed, or most commonly i see it after nerve decompression surgery while the nerve is "waking up." the nerve becomes hypersensitive and creates a shock like sensation along the path of nerve. Dr. K hand houston, tx.