1) When a magician cannot perform magic.
2) Place in Earthbound

From STEM, an abbreviation short for "Science, Technology, Engineering and Mathematics", a STEMlord is a pejorative term for a particular kind of person who has studied in these areas at university or works in these fields who holds a pretentious, condescending attitude to anyone who has studied in any other fields, particularly the Arts and Humanities. They typically believe themselves to be more "intelligent" and "rational", while generally remaining incredibly ignorant outside of their areas of expertise and having the charisma of a rotting pig's backside.

Earthbound Zero/Mother: Queen Mary's subconcience

Earthbound/Mother 2: Ness's subconcience

From a portmanteu of Magician and Can't. A practitioner of Clear Magic (illusion stage magic) that bungles every trick or isn't good with crowds.