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25.
1) A very late brunch.

2) When one will eat breakfast stuffs and foods way past lunch time.

3) One who has missed the morning food call because they've ran late or what have you.
This brunch was so late we should have called it a "Dunch"!
by Merci Merc October 13, 2012
 
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
 
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
 
3.
when a girl is giving head, and the guy vomits.
oh my god they totally dunched last night, it was nasty!
by marshaaaaa77 August 17, 2011
 
4.
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
 
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.
the fleshy tissue to the left and to the right of the area between a girl's vajine and butthole.
Man, my right dunch is sore after sleeping on my side
by NOLAPartyTime July 19, 2010
 
7.
A person that when spotted, makes the viewer stiff and uncomfortable. Perhaps this individual is devastatingly unattractive, or spits out food when they talk.
Yo Limary, check out that girll...what a fkn dunchhh.
by WBSIII February 09, 2010