Wind puffs are when air leaks into the tissues under the skin, it gets trapped and the bird will look like a balloon if it is a big puff and swollen if it is a small puff. When it happens you need to release the air by opening the skin. If you haven't sutured you can make a quick hole (tip of the scalpel or needle) in the same insiscion site as the procedure or you can make one anywhere the air is trapped. The air will woosh out but you may need to help it in some of the further out pockets (like if it got really big and down into the legs, just gentle pressure to move the air pocket towards the hole.
I do not know about turkeys, but would think it would work the same, I don't know about the anatomy of the turkey as to where exactly to locate the testes or landmarks on the outside, but would start in a similar location as the roo'let.
I had feeling it was very similar to like bloat on a cow were just releasing the air by needle or incision would work just wanted to make sure. Im thinking about trying a few later this year. Anatomy of turkey pretty much the same that I have seen when butching them. I may have to try on some I will be growing out and butchering anyway.