Muncheon is an extra meal at any time during the day in addition to the more recognised; breakfast, lunch(eon), tea and dinner. Similarly to luncheon, muncheon is a formal way of saying 'munch'. Traditionally, having a 'munch' is frowned upon and linked to greediness and lack of self control. Going for 'muncheon' is a politer way of describing your extra meal/snack.
Q: Would you like to go out for muncheon tomorrow?
A: Of course I would. I am always down for a fat munch!
A: Of course I would. I am always down for a fat munch!
by Alzamatralz September 18, 2016
derived from the word luncheon, muncheon is similar; it is anytime during the day when you take a break to munch on some food.
I had a late night muncheon!
by ayyrayray February 14, 2009