That tired, ugly face people get when they've just woken up in the morning. It's also just as common to get morning face after waking up from a nap. People with morning face may also have morning hair
. They will have bags under their eyes/dark circles around their eyes, a slouched posture, and pouty lips. Their skin may also appear paler/greenish or yellowish, as if they are sick, but it is more common to just be a little paler.
My brother: Hey, Vicky - OH, MY GOD, IT'S JEFF THE KILLER
, bitch, it's just my morning face.
(Whenever I grin with my morning face, I actually do look like JTK.)