noun.
1. Practitioner in the field of magic conjuring information from the chaos of the universe.
2. Person who uses terms, queries, and actions related to the retrieval of information from arcane sources.
3. Librarian.
Wow, I searched Google for hours and couldn't find what I was looking for. That librarian managed to find the answer in minutes. (s)he's a real infomancer.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.