A frequently asked question: “what does hau mean?” To avoid repeating myself, I will explain it here.
“Hau” is what dogs “say” in Finnish (they also “say” some other things such as “vuh”).
At first I just greeted Tessu and family members by saying “hau” and then it widened to IRC & elsewhere.
It cannot be any worse greeting than “hai” (below) which some people use.
Update: add some point I started saying “mau” instead which is what the cats say in Finnish, but why not as it only changes one letter.
This is probably caused by the fact that I moved away from Tessu and Karou from the Daughter of Smoke & Bone was very easy to identify with in the first book.