"You've been Garthed" is a phrase spoken by former hunter and current werewolf / dentist Garth Fitzgerald IV. Getting "Garthed" in a sense means you've been owned by Garth in some fashion, from putting spirits to tracking people's locations.
- "All right, Jenny G. Your ganking days are over. You've been Garthed.
The remains of Jenny Greentree were "Garthed" when Garth believed her ghost to have been the cause of a recent spate of mysterious deaths in Junction City, Kansas.
- "Yeah, you've been Garthed."
Garth calls up Sam to assign him a case in his and Dean's location. When Sam questions how he knows where they are, he simply tells him they've been "Garthed."
- ''He got Garthed."
After saving Sam and Dean from the vampire cage fighter, Maul, by cleaving his head with a machete. He tells Sam and Dean that Maul got "Garthed."