A disruption of the normal thought process, normally by an external distraction. This occurs most often at times where mental focus is a necessity. Cognitus interruptus sometimes leads to procrastination, leading to further cognitus interruptus and creating a cycle. Not to be confused with coitus interruptus, which is something entirely different.
Constant cognitus interruptus in my classes kept me from passing finals.
by Fish Fooood February 19, 2010