The simultaneous execution of an exceedingly large number of tasks. An otherwise unmanageable number of tasks that can be accomplished with an extreme level of concentration. aka taking multi-tasking to the Nth degree.
example: Look at him go! That MoFo is hypertasking like a Cray Supercomputer.
example: If going to school full time requires multitasking then going to school full time, working full time, and taking care of the family damn sure requires hypertasking.