"Knock knock."
"Who's there?"
*slaps* "We ask ze questions!"
What was Hitler's lucky number?
Nein.
"Popcorn" means "Photo-Oxidant formation by Plant-emitted Compounds and OH Radicals in Northeastern Germany."
"HO" means a woman, in particular one who has many casual sexual encounters or relationships. So basically, popcorn is a woman in plant based sex encountered a lot in a nazi camp.
Nosy.
School. School is a slavery joke and a Nazi joke combined.
Hitler visits a lunatic asylum. The patients give the Hitler salute. As he passes down the line, he comes across a woman who isn't saluting.
"Why are you not saluting like the others?" Hitler barks.
"Mein Führer, I'm the nurse," she responds. "I'm not crazy!"