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Apparently, he's such a skeeze, even though he was just trying to be friendly. He didn't call Gretchen the same night he didn't show up to a party at Regina George's house with her. Cady Heron didn't want to have sex with him. And it's under debate whether or not he has shaved his back yet. He was possibly dating Taylor Wedell (She lives on S. Blvd with her mother who still let her go to a party at Cady Heron's house even after Susan, from Planned Parenthood called with Taylor's test results) but then he left Tylor at Cady's party and made out with Gretchen, who then started hanging out with "Cool Asians" one of whom made out with Coach Carr.
Jason: Is your muffin buttered?

Cady: What?

Jason: Would you like us to assign someone to butter your muffin?

Cady: My what?

Regina: Is he bothering you? Jason, why are you such a skeeze?
by alkdjfla December 05, 2010
Jason: to hide the evidence to stash away..
so what did you do with that grenade..oh i just jason 'ed it ..
by OurFuturePaedophileyaaayyyyyyy October 20, 2010
Your average dude with a small penis, spit down the middle. He abuses his hamster and takes advantage of those around him. He takes pleasure in uppercutting children. His asshole has been gaped over the years of sexual discipline and has herpes. This is the kind of man who has no self esteem and locks puppies in his basement for fun and amusement. A Jason also passes time by fapping to horses and ponies. In short, this dude is messed up.
Charles Manson? What a "Jason."
Joachim Kroll is the equivalent to Jason.
by Ronald MÇGodDamnDonald January 14, 2014
A douche who looks very similar to a Neanderthal. You can identify a Jason by his prominent brow bone and distinctive poof on his chin that he likes to call a chin-beard. In reality, this is mold that is growing upon his visage. His singing can be likened to toads mating. His breast size should be a solid b-cup which is accentuated best by his Lance Armstrong bike shirt. His bosom will cause some of the ladies to be jealous. He is short in both physical stature and schlong size. However, his ego makes up for this. Everyone should know that his IQ is at least 260, and that is DEFINITELY not an exaggeration. If he breaks up with anyone it is certainly a good idea, for his IQ told him so.
Girl 1: damn, I wish my boobs were as big as Jason's,

Girl 2: Yeah, I know, right? Me too. I'm only an A-cup...

Man in the forest: What's that sound. Is that a toad. Oh wait. Jason has begun a ballad...
by My guitar March 05, 2012
anyone with the name jason is known as the biggest ass in the building. He is usually an incompetent bastard who is not capable of doing standard every-day things. He weasels his way out of any chore or action that helps anyone else. He tends to be a poser and pretends to know things just to look like a man. He thinks treating women horribly in front of men makes him look manly. He doesnt bother hiding his napoleon complex because he doesn't realize that everyone knows he is trying to over copensate for the youth size protective cup that he owns.
"That mama's boy can't even take care of himself, he's such a jason."

"Did he just say that Reggie Bush got a homerun?, what a Jason!"
by itisthemostfactualpieceofinfo December 22, 2011
Jason's tend to fall in love with the best. Like, Kristina's. People with the name Jason will do anything to get the other person happy. They love Kristina and they will never stop. Ever.
"Whose that couple dating?"
"Oh that's just Jason and Kristina!"
by Hiii0330 September 18, 2011
An adorable Vietnamese boy born with large eyes and black hair, but only the ones with the best taste in music will be cool enough to dye part of it blonde.

Every single girl seems to fall for a Jason, so you'd be extraordinarily lucky to have a Jason fall for you.

Jasons are very tall with an abnormally big appetite. Don't be surprised if a Jason leaves you for food - you'd do best to get used to it.

Jasons have the cutest voice ever, even if it is slightly higher than most. If you're special enough to be allowed to hear a Jason sing, good luck listening to anything other than his singing for the next decade.

Jasons make you smile the most, and the thought of being with one someday is enough to make your heart melt and keep you awake every night.

An asian (specifically Vietnamese) version of Justin Bieber, although Jasons are a bit hotter and have a better sense of humor.
Omg you're leaving me again? What a Jason!
Stop making me smile like a maniac - you remind me of Jason.
Jason? Hell yeah, of course I love him.
by fatrice July 04, 2010