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basshole 

A jackass that drives through residential areas at three in the morning with the subwoofers on his car stereo at maximum volume.

See also inbreeding.
I was enjoying a restful slumber, when this basshole came driving by, causing everything in my apartment to rattle, almost as if hit by some localized earthquake phenomenon.
basshole by Lunarsight August 13, 2004

masshole merge 

The method used by drivers from Massachusetts to merge in a construction zone - driving as far in the lane that is ending and then forcing traffic to stop in the continuing lane as they force you to hit them or let them in.
That guy tried the masshole merge and got himself an ass full of Peterbuilt
Any Massachusetts driver who abides by the driving rules of Massachusetts highways (128, 93, 495, 3, and the Pike, but not West of Worcester). These rules are:

1) Never use your blinker.
2) If you want to change lanes, wait until there is someone to cut off
3) The speed limit is a guideline; it is the bare minimum you should go. Ideally, you should be going about 25-30 mph above it
4) No U-Turn signs are just a suggestion, you can bang a U-ie wherever you damn well please
5) Tailgating is mandatory if there is any traffic at all
6) One hand on the wheel, one hand on the horn
7) If you see someone with a Yankees sticker, ride up even closer on their tail
8) Change lanes frequently

A Masshole isn't a shitty driver. He may piss you off, but he ultimately gets there faster and without crashing. It's an acquired skill

He also is probably smarter than anyone from any other state, and yet still can drink like a true Irishman

The Masshole test is simple. Go down Route 3 from Braintree to the Sagamore Bridge. If you do it in under 30 minutes, you're a Masshole
Me: I made it from Boston to Hyannis in under an hour

Someone else: Dude, you're such a fuckin' Masshole

morasshole 

the person responsible for creating a morass
Does anyone know what morasshole inspired this mess?
morasshole by Coop's Dad June 27, 2007

massholes 

crazy Mass. driver, or any other person from Mass. (Term usually used by people in NH)
massholes by wickedNH February 6, 2004

MMAsshole 

This is a individual who is obsessed with the world of mixed martial arts (MMA) and takes it way too far. This is a person who goes out to take the knowledge they got while watching "THE NEXT ULTIMATE FIGHTER" marathon and acts as if there is no one tougher that they are. They can be found and all types of establishments that serve alcohol. When they are engaged in a confrontation they will speak of their "Striking Skills" and"Ground and Pound". This persons wardrobe consists of Affliction and Tapout apparel mainly or has a Affliction and Tapout logo tattoo.
The guy in who started that fight is a mmasshole.

"I have a unstoppable ground and pound" stated the mmasshole
MMAsshole by Ginger Bouncer August 2, 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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