Morning Jacket 

Take definition #6 & #7 from jacket and do it in the morning.

A: Where's Steve, we gotta get going.
B: I dunno, must be trying to get his 'morning jacket' on.

Morning Jacket by SkilletAZ March 13, 2008

my morning jacket 

A cool indie band from Louisville, Kentucky. They formed in 1998 and have released 4 albums, their most recent being Z.

I first saw My Morning Jacket on Conan O'brien.

my morning jacket by Hydroman July 11, 2006