An adjective, typically used to describe a rude or discourteous person, most commonly in conjunction with the operation of a motor vehicle.

Examples of such behavior might include, but should not be limited to: tailgating, lane drifting, weaving, random stopping, randomly leaving a turn signal on, not using a turn signal to indicate a turn, inability to merge, inability to yield, inability to observe posted signs for anything, or any combination of these.
Just ride on the Mass Pike. Multiple examples will immediately come to mind.
by Andrew February 9, 2004
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I'm a masshole and I'm proud of it!
Sox and Pats kick ass!
by JasonGiambi December 10, 2004
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Guy or Girl from Massachusetts who expresses love by busting your balls. All others bow to them because they're jealous of their ruleitude. They talk fast, walk fast, drive fast, think fast and no one gets their sense of humor because it is dripping with sarcasm. WE are proud of it, because we know that the rest of the country is too plebeian to understand the complexity of awesome that is us.
YoI'maMassholeGetthefuckouttamywayyacunt!Igotmoreawesomeinmylittlefinger.Westartedthiscountry,bitch!
by KateTheGrate August 13, 2010
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1.) According to an outsider...

The word Masshole is used to describe someone from Massachusetts who is a bad driver, obnoxious, belligerent, ignorant, arrogant, and rude.

2.) To a MASSHOLE...

It's a word we take with the utmost pride. We consider it a compliment.

We're not bad drivers...it's actually more like efficient aggressiveness. Maybe it pisses you off, but hey we get to where we need to be in a timely manner.

Obnoxious & belligerent? Yes. But this is something we also take with pride. Who cares if I'm dancing on my chair at a Sox game singing 'Sweet Caroline' at the top of my lungs while double fisting 2 beers? I sure as fuck don't...and if you do, then it probably means I'm having more fun than you are.

Ignorant & rude? No. We're just not fake. We don't go out of our way to stop and say, "Hi, how are ya?" to every Tom, Dick, and Harry we pass on the street.

Arrogant? Abso-fuckin-lutely.

**For further information, watch my 'MASSHOLE' video, inspired by this website and all your definitions. Enjoy :)
www.youtube.com/dheckbert1
We took the kids to the Bruins parade for a nice family fun day in Boston and everyone was drunk, shirtless, and climbing on rooftops before noon time. That's the last time I expose my precious angels to a bunch of Massholes.
by DWowww January 25, 2012
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Those Massachusetts licensees who drive in upstate New York at excessive speed and tailgate slower drivers. They are prime targets of New York State Troopers on parkways and interstates. This behavior derives from the greater degree of urbanization of greater Boston, with its attendant accelerated pace of life, and the lax enforcement of speed limits by Massachusetts police.
"Pull into the right lane and let that Masshole in the SUV pass you out"
by OtterKitty June 21, 2013
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Mix 1 part Massachusetts + 1 part asshole = MASSHOLE.
"Jason Wiseman is a total masshole!"
by GFYjasonwiseman October 16, 2012
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Native citizens of Massachusetts, these filthy piles of subhuman garbage can be found seasonally swarming New Hampshire each summer and fall, desperate to escape the pathetic lives they've left behind in their disgusting state. Ironically, most Massholes will actively sneer upon and condescend the native residents of New Hampshire, even while they frantically scramble across its borders.

Immediately identifiable by their proto-human speech, which instantly announces a profound lack of intelligence, or even basic civility, Massholes can take many forms, but share many common traits. For example:

That fucktard that is drifting into your lane, and traveling 55 in a 30, why don't you glance at their license plate? Sure enough, it's a Masshole.

That douche that's walking an easy hiking trail with his buddies 3 minutes from a major roadway, and openly wielding a crossbow and machete because to his dumb ass he might as well be embedded in the jungles of the Amazon--when you get back to the parking lot, take a look at their license plate. Can you guess where they're from?

That obnoxious asshat that's wearing a Patriots jersey, talking so loud that you can hear every word of his retarded conversation, and taking up two pumps at the gas station because he's too self-absorbed and arrogant to take one second and pull forward a little--again, just glance at that license plate. Gasp! It's a Masshole; how surprising!
You see that real piece of shit with the Patriots jersey that just cut us off, wonder where he's from? Oh yeah, can you believe it? He's a Masshole!
by NH Native August 29, 2017
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