One with SMS (Short Man Syndrome), when mixed with alcohol an Arthur has the tendancy to become violent. Arthurs tend to act tougher than they are to appear to an audience as ferocious. Arthur's are typically lazy but loud mouthed. They talk with their hands a lot and say stupid things.
Guy 1: Did you see James at the party last night, he was acting like an ass because he was drunk but he was saying some pretty stupid things.

Guy 2: Oh so it sounds like he was being a total Arthur then.

Guy 1: Yeah pretty much.
by HaroldtripleSEKS February 13, 2008
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Slang for arthritis, especially the rheumatoid kind that gnarls your joints all up.
Lamont: Did you move that furniture like I asked you?

Fred Sanford: No son, I couldn't do it because of "Arthur" (then holds up a "cramped" hand), you know, my arthritis!
by mt3vsl June 20, 2009
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Arthur is a cunt, poopoo man and a big shitty fuck
he's the type of person to call you and say you're late for school

because what do you get when you cross frankenstein and a little baby bitch boy

i'll tell you what you get A CRAAAAAAAAAAAZYYY HAMBURGER
Arthur what the fuck are you doing with that gun
swahdy like a meldiody in mea head - Arthur
by imnøtk September 29, 2020
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Arthur is an idiot dude. He likes to ditch his friends when they are going for a ride so that he can get on a train after eating Hungry Jack's. He can be quite annoying and is always talking about cannibalism and murder. He also doesn't invite his friend Toby to his birthday party because "There were only 12 beds and 3 people is too many for that."
"This person is such an Arthur"
by idot_dum November 29, 2021
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A BIG RUSSIAN PIECE OF SHIT. tries to hard to get the pussy but gets dick instead
THAT GUY IS SUCH AN ARTHUR
by jack offmen December 20, 2016
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Arthur is a little bitch who loves anime and is a low key but high key emo. He also plays the drums
(Y/n): Arthur what are u doing??
Arthur: being a little bitch
(Y/n): makes sense
by Whatadood.com April 15, 2019
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A fuckboy, commonly masturbates and uses chicks for popularity
“Arthur is such a fuckboy!”

I know, right, all Arthurs are fuckboys!”
by UrbanDictionariesFR June 19, 2018
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