Pupgrade
The act introducing a puppy into a part of your life (Facebook profile picture, household, etc.) where no puppy was previously present.
"Did you see Dave's new profile picture on Facebook?" / "Yeah, it's definitely a pupgrade from his previous pictures"
Pupgrade
Upgrading the pups (pickups) in one's guitar.
Stan's guitar really lacked output and sustain, so he decided to install
Bareknuckle Juggernauts. Quite a pupgrade, indeed.
Bareknuckle Juggernauts. Quite a pupgrade, indeed.