The act of waiting for a work to be completed by someone else and steal the credit.
1: Yo, you heard about that essay Maddy made? -Yeah, but I heard she yungbossed it from Harry.
2: Doom was not made by l33tH@ck3R, he yungbossed it from id Software.
3: Can't wait for Nelson to finish his beat! I'm gonna yungboss it from him so much!