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Sudden Jackass Syndrome(S.J.A.S.)

A person who jumps to conclusions and speaks or acts out without full knowledge of the current situation, and then winds up looking like a jackass when informed of what's really going on.
"The other day Dave had a case of Sudden Jackass Syndrome(S.J.A.S.) when he caught his girl on the phone talking all secretively. Then he started accusing her of cheating on him, asking who the guy was and if he was no longer good enough for her. And that is when she informed him that she was being all secretive is because she was planning his birthday party. I swear you could see him grow buckteeth, a tail, and some donkey ears!"
by javajester October 13, 2009
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Puertoriccan Jackasses

Group started by Ivan , ALC89, Mamut, Mayin and Wamishi,
Puertoriccan Jackass Beginning
They started on the year 2009 on a barbecue at one of the guys place, and out of boredom they started playing hot potato with hot coals, here we see for the first time this crew that would be big on the former bragster, and performing every request the fans would ask of them, when i asked their manager all she could say was that they do it because, they want to show that Puertoricans are not as lame as the guys you can see on youtube, and also that they did it for fun pure and simple, just cause the wanted to not because they had to, and that they were not looking for any 5 seconds of fame or anything. This group is made of friends and family, relationships born at childhood or infancy.
Puertoriccan Jackasses
Ivan born on June 1988 on Puerto Rico , He is like the mad scientist of the group, he makes any invention that might be needed and usually suggested the most painful stunts, hes what i like to call one of the faces of the group.
ALC89 born on 1989 on Puerto Rico, Hes one of the other faces of the group and believe it or not this guy its a very mean player on the realm of xbox 360, and now on the xbox one, have made my brother play with him games to see his game style, hes wicked and very dangerous, on Halo, Gears of War, Call of Duty, i would refer to him as a xbonian spartan. He performs stunts and he is also one of the faces.
Mamut born on 1990 on Puerto Rico Also a face of the group hes a hardcore music afficionado, apparently knows quite a few about music and also plays ps3 as hanzotori , although never seen him play, he makes stunts and talks on intros, also he is a prankster, and enjoys the pain and suffering of others.
Mayin born on 1990 on Puerto Rico funny voice talents, really cool performer likes the island folklore music called as regaeton, performer, par time voice.
Wamishi (AKA Pinky) by the way he squeals and sometimes talks all you are missing is a troz or poing. Performer and comedy of the crew
All of this fellows are performers but also enforcers and are always picking on the lower ranks if you will of this group..
by Alany00 December 9, 2013
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Post-Slowed Jackass Syndrome

Occurs while driving. The vehicle in front of you is going below the speed limit (or is going the speed limit where everyone normally speeds), and the road doesn't permit you to pass them, so you become agitated. This builds up, and once you get to a point where you can pass them, you do so dramatically and accelerate hard past them, driving recklessly like a jackass for about 10 seconds before you calm down and return to normal.
Dude, I was going the speed limit. No reason to get Post-Slowed Jackass Syndrome.
by Paylardo November 3, 2010
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general jackassery

noun-just fucking around
i was hanging out with some friends, and we got engaged in some general jackassery
by closing time April 18, 2008
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jackass

by refuze May 17, 2005
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Jackassaniacal (JAK-ASS-A-NIAH-KAL)

A person or persons who are literally crazy or literally a maniac about acting like a Jack Ass !
A "Jackassaniacal (JAK-ASS-A-NIAH-KAL)" person constantly loves to go the extra mile to be not only annoying or a nuisance,but makes sure that everyone around them is not only uncomfortable around them but goes out of their way to act like a selfish baby or jack ass simultaneously while being a pain in the ass at the same time.
by Darizzle7 July 3, 2011
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egomaniacal jackass

Refers to someone who is an egomaniac and a jackass
egomaniacal jackass: Hey fuckers! I bet I can run 20km faster than you can and still have to energy to kick all of your asses!
non-egomaniacal jackass: Fuck off dude, I could knock you off your feet, stop being an egomaniacal jackass just to impress Brittany.
by benormous April 28, 2006
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