clerk-flex
When a low-level office clerk tries to exert 'muscle' by giving you a hard time for (or about) something, usually around policy interpretation, purchases, or just about anything they feel they can demonstrate their ability to think at a higher level.
When an office admin assistant, unnecessarily questions (ergo delays)your expense submissions, by asking detailed questions, even if they had previously been approved. This can be refered to, as clerk-flex.