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2.
An abnormally time-consuming, large, pasty and often painful bowel movement. As a general rule, taking a dunch requires most of one's lunch break to pass loaf or loaves and finish the paperwork.
Q: "...Hey Bob, I'm going to that sushi joint with the girls from accounting. You wanna come?"

A: "...I'd love to but I have to take a horrendous dunch." I'll see you at the 3:00 meeting."
by JEUNT November 11, 2009
 
1.
noun.

Dunch refers to a meal enjoyed subsequent to lunch but prior to dinner.

Dunch should be distinguished from linner, another meal occurring in the post-lunch, pre-dinner interval, in that dunch occurs after linner, closer to dinner time.

Thus, the socially accepted norm with regard to afternoon eating agendas comprises the following progression of meals:

Lunch --> Linner --> Dunch --> Dinner
His large stature requires that he eat lunch, dunch, and dinner!
by Willow October 12, 2007
 
3.
The groin region between front and back, similar to a taint.
I was having a good day, until I walked in on Chris and Colleen smashing dunch in the tool shed.

Justin Hauser was being a dunch, so I gave him a punch in the dunch.
by Trent, from Bishop May 06, 2011
 
4.
To be a complete idiot or retard. It is a funnier way to say douche or douche bag.

(see dunch-bag or dunchery)
bob- hey whats up guys wanna hang out?

hank- hell no your to much of a dunch.

peter- yeah go be a dunch-bag some where else.
by Kitten Biscuits November 25, 2009
 
5.
Dinner-Lunch
A meal between lunch and dinner
I'm glad I had dunch, because dinner was very unappetizing!
by fiercegiraffe August 03, 2009
 
6.
Combination of "dump" and "stench" used to describe an especially smelly fart that lingers
Jim dunched up the car on the way back from the mexican restaurant.

This elevator is all dunchy.
by Malamute July 18, 2008
 
7.
A meal between lunch and dinner
I woke up late this morning and wound up eating dunch around 4 o'clock.
by MW713 May 15, 2008