In English, Rudi there are two meanings of the word "anal". I do believe that mikey is referencing this definition from Merriam Webster:

Main Entry: anal
Function: abbreviation
analogy, analysis, analytic

This is a very common usage referring to anyone who is overly analytical or too uptight about details that really don't matter in the grand scope of things.

Do you become an angry older brother if your adoring sister disagrees with you on your birthday/anniversary?