A hypothetical singular form of the noun secks. A round of sexual intercourse is composed of infinitely many secks, much like the area under a curve in integral calculus is composed of infinitely many line segments. The use of "seck" is hypothetical because it is impossible to give or receive only one seck.

The term 'seck' can be used to describe when a person is destressed or in a state of depression. It can be used to describe when a person is not looking forward to a future situation which will not benefit them and cause them large amounts of hesitation. It is not to be confused with the very similar term 'sick'