Kick it in the ass!
From Super-wiki
Kick it in the ass! was the catch phrase of Supernatural producer and director Kim Manners, who died in January 2009.
In 5.10 Abandon All Hope, Ellen's parting words to dean are "Kick it in the ass" - a deliberate use according to Sam Ferris, of Kim's signature line.
In 5.22 Swan Song, the tape Dean loads into the cassette deck in the Impala as he drives into Stull Cemetery to face Lucifer and help Sam is labeled "Kick It In The Ass".
