Unfortunately my recollection was dead wrong and it's apparently not a tattoo. At least I can't find anything corroborating my memory. Instead, it was part of his reddit handle. It frequently exists as a tattoo in the universe of iconography relating to that bad german political party which may be where my conflation came from but I don't see anything showing that he has it.

The post below discusses the user handle and its connotations (I'm less certain than this poster but nothing would surprise me at this point).

https://social.wildeboer.net/@jwildeboer/113850246346827615