|“|| Castiel: Hey, assbutt!|
Lucifer: Assbutt, I-I-I still don't get that.
Castiel first used this insult at Stull Cemetery. Upon arriving with Bobby Singer and a molotov cocktail filled with holy oil, Castiel shouted "assbutt" at Michael to get his attention before tossing the molotov at him, causing Michael to excruciating pain. Dean repeated the phrase out of confusion.
Years later, at St. Alphonso's Academy where a Supernatural musical was being performed, a girl portraying Castiel used the phrase "Hey assbutt" during a scene.
While in Limbo, Lucifer took Sam through memory lane and the two visited the exact moment at Stull Cemetery when Castiel first shouted this insult. Lucifer admitted he didn't understand the meaning of the word.
Upon arriving at Limbo along with Dean, Castiel shouted "assbutt" again, but this time at Lucifer as a way of announcing his presence.
- Season 5
- Season 10
- Season 11
- Season 12
- The exact meaning of this insult has never been explained on-screen.