This is VERY DANGEROUS no matter what you are cutting, leaving you likely to slice your palm in the process. Let the slice of meat fall to a cutting board or other surface instead.
Make sure your tools are sharp
This might sound silly, but using dull tools requires you to use more force to cut through your turkey. This makes you more likely to rip through or slip & slide around, cutting yourself. Sharp tools glide more easily through your meats.
Keep everything in your work space clean and dry
All of your surroundings should be dry! Your hands, your knife handles, your cutting board, as well as your surrounding cutting area or countertop. This helps avoid slips and slides that result in an injury! Everything should be dry… except your turkey! (haha)
Do NOT use a knife to cut through bones
We all love to use the bones for either broth or making gravy. Try using your kitchen scissors instead. This is what kitchen scissors are designed for. They make the job both easier for you and more safe for your hands.