Mysteries of Ashkenazic last names explained

[Raybert]

@jsroberts

Putz’ is a good example of that - as far as I know, Germans mostly use it to mean ‘plaster’ as a noun and ‘to clean/to plaster’ as a verb. I don’t think the German word has the sense of ‘dick’.

Correct.
Or as a word derived from ‘putzen’ as in ‘cleaning’.
Brush your teeth = Putz dir die Zähne.

aide-memoire: Howard Wolowitz is a putz.
Sheldon Cooper putzt sich dreimal am Tag die Zähne. Und ist der König der Klugscheißer.