2 definitions by Mike4587

When one member of an academic department at a university hooks up with another member of the same department.

Considered slightly incestuous because often members of the same department are often an insular social group that work, hang out and often live (roommates) together. Can also lead to a degree of nepotism.

On the other hand, can be quite common or even encouraged due to the lack of interaction with non-members of the department.
If you are going to take time away from your studies for a love life, make it department-cest so you don't get too distracted. Lab or office-cest is off-limits though.

Did you hear Mike and Sally are shacking up? Department-cest!
by Mike4587 November 19, 2010
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The opposite of department-cest. Dating/fucking someone outside your academic department. Usually applied in reference to graduate students.

From the genetics term "outcross" referring to a mating between individuals from two different linages or populations.
Damn, you have screwed every chick in the department aside from your officemates! Time for a departmental out-cross!
by Mike4587 December 1, 2010
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