Amplified version of a mong - when one is so wiped that all one can do is chill, do nothing practicle whatsoever. The beauty of a mega-mong is that it can last for hours, even days.
Im so hungover that im just gonna crash at mine today and have a megamong for the rest of the weekend
When you havent got enough time to mong, but really need one. A very small mong that can last at little as ten minutes. Very refreshing and can have one anywhere really.
Ive got an hour break before my next lesson, fancy a mini mong?