This is a slang word used by people in Asia to describe people who are very smart or especially good at something. It comes from the chinese word 學 and god.
What this Mexicansaid to me when he wandered on to my property last night
A Mexican guy came into my yard and wanted to use my phone. The only words he knew in English were "No police" and "E.T. phone home" He was probably an illegal immigrant. True Story.