If you turn in the real one, you lose the ring. However if you forge it, you keep the real one and turn in the fake.Verb (used with object)​​ forged, forging. How can you tell if someone forged a signature? A forged endorsement is when someone forges the payee's name in the endorsement section on the back of a check. An illegal copy of a document, painting, etc. If one person or institution forges an agreement or relationship with another, they create it with a lot of hard work, hoping that it will be strong or lasting.