To make heavy weather of something. When a ship makes heavy weather of a storm it has a particularly rough passage, or journey. When we have a great deal of difficulty with something then we make heavy weather of it. Lightning never strikes in the same place twice. He ran like greased lightning.
Grease is a thick lubricant.
He has his head in the clouds. He cannot think about everyday matters. He's under a cloud. He's in trouble, in disgrace, or under suspicion of doing something wrong. Let's see which way the wind blows.