A substitute teacher.
School of
Rock:
1) Patty: ...And Ned has the most important
job there is.
Dewey: What, Temping?
Ned: Dewey, a substitute is not a temp!
2) Patty: Oh you got a job, doing what?
Dewey: I'm temping,
like Ned does.
Ned: Dewey, a substitute is not a temp!