Unfortunately, the Pretentious Word of the Week this week is not actually pretentious. It is just long.
While it is a fun word to use, the real interest in histioblogonate is its various forms. Yes, it means to figure out what a wrapped present is using your senses (hearing, smell, sight, and touch) without opening it, but that opens up other words.
Histioblogonator, someone who histioblogonates. People most often become one of these at birthdays or Christmas.
Unhistioblogonatable, the state a wrapped present is in when it is unguessable. This usually required weights, false sound makers, and a really well stuffed box. It usually also requires that your family/friends like histoblogonating.
Histioblogonating, the present form of histioblogonate, usually occuring when someone is trying to figure out what a wrapped present it.
Histioblogonation, the form used when declaring what one has histioblogonated a wrapped present is. For example, "My histioblogonation has determined that this present is a toy car."
So there you have it. May your histioblogonations be enjoyable.