modern jackass

a person that talks expertly about something he/she actually knows nothing about

(Defined by the NPR show This American Life)

Usually occurs in a conversation when you know a little about a subject and when asked to expand upon it, you extrapolate completely unrelated nonsense.

"What are trans fatty acids?"
"Fats that have an extra hydrogen atom on it"
"What is that bad for you?"
insert modern jackass line

by Rian D Fowler September 3, 2005

Jackass Movie

The funniest movie in a century.

Let's go watch the Jackass Movie.

by FhillyMan May 13, 2003

jackass

1) An idiotic person.
2) A type of Donkey
3) A show named after its target audience.

That guy is a jackass!
The jackass crapped on his lawn.

by bobalot August 25, 2006

jackasshole

A person combining the traits of an asshole -- mean and worthy of nothing but contempt -- and a jackass, who usually is someone that is simply stupid and does foolish things.

When he passed me like a blue streak in traffic, that jackasshole almost took the side off of a parked police car.

by The one and only Matt Burgess August 4, 2008

This Just In: You're a Jackass

A smart-ass retaliation to the insult Newsflash: I don't care.

Dude 1: Hey, did you know I just got a raise?
Dude 2: Newsflash: I don't care.
Dude 1: This just in: you're a jackass.

by _allismine_ May 18, 2006

Laughing Jackass

Someone who laughs a lot.

She's a laughing jackass cause she laugh way too much.

by Cath Roxy January 16, 2007

jackassius

An imbellished jack-ass.

Did you see that guy cut me off?!? What a jackassius!

by John Oh April 12, 2007