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A foolish and fairly stupid person, usually online, who is generally completely oblivious to how much of an idiot they come off as. They usually have poor grammar, bad social skills and there's seldom anything thought provoking or even remotely interesting about their opinions and/or they post things that are ridiculously off topic to the discussion at hand.

There are two flavors of them: the young and immature garden variety Dunks and then the trollish, masochistic lifelong ones with something seriously wrong with them emotionally and mentally. Most Dunkasses are often young and usually mellow out as they get older and learn better netiquette, some even becoming valued and productive members of the community in question, though a rare few, people like Christian Weston Chandler, will stay completely unrepentant, stubbornly refusing to learn from their mistakes and learn social skills. A lifelong Dunkass often ends up with a long list of communities from which they've been banned and a bad reputation across their fandom or community.
Sam just posted something so stupid on our message board, he's such a Dunkass, we may have to ban him if he doesn't grow the fuck up.
Dunkass by ShinCookie November 2, 2016
“Dunkard” is a derogatory term for the Amish.
Dirty ass Dunkard, I am trying to drive here!
Dunkard by real_rc3 March 5, 2019

Dunscapped 

Royally fucked up. Totally ruined whatever you were trying to do in the first place.
Man I totally dunscapped that shit.
Dunscapped by Baustin87 August 2, 2019

The Dunkaroo Effect

When you have 1 substance (dunkaroos) which should be used with another substance 2 (frosting), and you end up with way more leftover substance 1 or 2 and you have no idea what to do with the substance in question.
Shant: Damn homie, I have all this frosting but no Dunkaroos left, what the hell am I supposed to do with this?

Brian: OMG dude, I dont know. Thats crazy. The Dunkaroo Effect is difficult to overcome..

Chunka Dunka 

A hench chocolate biscuit that is dunked repeatedly into a large, well brewed cup of tea.
Son of a gun I could do with a chunka dunka right about now!
Could i interest you in a chunka dunka?
Chunka Dunka by 138Hurst October 17, 2011

Dunsparce 

Probably the best pokemon ever. No but really just look at that fucking drill.
Holy shit that dunsparce just drilled through my chest. Kick ass.
Dunsparce by Ruby151chan October 4, 2010
More from Urban Dictionary

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026
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