I was more thinking punching himself in the gut to try and get Geist out. Don’t know/think it would work, but it doesn’t mean its not something you try when a nazi ghost is possessing you and trying to make you bomb your friends.

Perhaps Geist is making Walter punch himself repeatedly, while saying “Quit hitting yourself! Quit hitting yourself!”

On a serious note, is it just me or does it look a bit like he’s about to punch himself?

…out of my body!
…out you@#$@ Nazi!

to others:

..get away from me!
..out of here! I am not in control anymore!

To continue your list:

..laid
..f…..d
..me a Hefenweizen (Nice beer, good for washing your girlfriend’s hair, body and
so on, and you can drink it too.)