Pi mal Daumen adverb: (literal: pi times thumb) roughly, approximately
This idiom is used to indicate rough estimates. Fun fact: this colloquialism is used a bit differently in Switzerland (Handgelenk mal Pi) and in Austria (Daumen mal Pi).
Synonyms: über den Daumen gepeilt, ungefähr, etwa
Ich brauche Pi mal Daumen 5 Minuten, um diesen Text zu verstehen. = I need approximately 5 minutes to understand this text.
Der Mechaniker kommt in Pi mal Daumen anderthalb Stunden. = The mechanic will arrive in approximately an hour and a half.
Pi. Photo: Andrew Martin via Pixabay