A phrase used when an undergraduate or graduate student in a university has an intellectual crush on his or her professor. Such a professor is someone who thinks like you and validates your own ideas or pushes your thinking to an entire other level. Likely during class you fantasize about talking about your ideas in bed over a smoke after fucking.

Somebody who uses the phrase "professor fuck" would never actually follow through with fucking a professor. The phrase is used to show your highest esteem for your favorite professor.

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