Below I put the definition of words to understanding joke:
What IT specialist drinks from?
-From e-KRANU
Translations:
*e-KRANU - computer screen
*kranu- tap (from bathroom, on the sink)
nice! The colloquial word for water tap seems to be similar to its Polish pendant in German: "Kran" as in "Wasserkran".
Does this pun work when translated to German?