Mega-Task
Something that only the highest performing Central Processing Units can achieve, preferably with only 4 cores.
Intel loves to show off their Mega-task capable 7740k.
Mega-tasking
Performing 5 or more tasks at the same time. Mega-tasking should not be attempted if you are an idiot.
I was working on an excel spreadsheet, writing a word document, taking on the phone, checking my email, eating lunch and drinking a soda at the same time... I was mega-tasking.