Example:
George:What about a show about nothing?
Jerry:Are you out of your mind? Okay, what would happen in show?
George:What did you do today?
Jerry:Well I got up, I took a shower, got dressed, and came here.
George:There's a show, that's a show!
Jerry:So you want me to go into NBC and tell them we want to do a show about nothing?
George:Exactly!
Jerry:I think you may have something here.

Example:
Kramer: Jerry, your gonna be the first pirate!
Jerry: But i don't wanna be a pirate!!

Example:
George: So, what have you been doing with yourself?
Jerry: I'm a comedian.
George: Well, I really wouldn't know about that. I don't watch much TV. I like to read. What do you do, a lot of that 'Did you ever notice' kind of stuff? It strikes me a lot of guys are doing that kind of humor.
Jerry: Yeah yeah... Boy, you really went bald there, didn't you? You used to really have a thick full head of hair.
George: Well, I guess I started losing it when I was about 28, right around the time I made my first million.

Example:
Every sentence uttered from her pretty little throat contained at least four Seinfeldisms.

Example:
vandalay industries! vandalay industries!

NO SOUP FOR YOU!

dentists, who needs them?
yeah, just like the blacks and the jews.

Example:
Kramer: Hey you want a Junior Mint?
Jerry: No I'm good.
Kramer: C'mon they're chocolatey and refreshing. They're delicious!
Jerry: No!
Kramer: (hands one to Jerry and it falls into guy getting operated on).

That joke might not have seemed funny here, but if you watch it you'll laugh your fucking ass off. It's the perfect example of a Seinfeld joke.

Example:
Seinfeld Concepts: The Pack, Top of the muffin, mustard and ketchup in the same bottle, Sex with the cleaning lady, Kramer toasting his shirt, the barking dog, Junior Mints, Puffy shirt, Cigar store indian, Mr. Peterman's cake, Stop short, Chinese food, George's cheapness (the red dot, toxic envelopes, etc), the debate of whether the eclaire was trash or food

So many unique characters: Bob Sacamano!! Art Vandalay, Newman, J. Peterman!!!, Jon Voight, Crazy Joe DaVola, Baboo, David Puddy, Sue Ellen Michgee, Poppy, Jackie Chiles, George's parent's, the list continues...

Quotes can be found at www.imdb.com with a forum

If you're not gonna be a part of a civil society, then just get in your car and drive on over to the East Side.

Cosmo Kramer: They're trying to screw with your head.
Jerry: Now why would a junior high school want to screw with my head?
Cosmo Kramer: Why does Radio Shack ask for your phone number when you buy batteries? I don't know.

Well, you, my friend, have crossed the line that divides man and bum. You are now a bum.

Classic.

Example:
George: Jerry, did you wash this pear?
Jerry: Yeah, I washed it.
George: It looks like it hasn't been washed.
Jerry: So wash it!
George to Sharen: You hear the way he talks to me?
Sharen: You should hear how my boyfriend talks to me.
George and Jerry: ..........

Example:
The Best Scene Ever (happens to be from Seinfeld)

{Jerry and Sheila standing in line at the Soup Nazi's stand}
JERRY: What are you gonna get?
SHEILA: I'll decide at the last minute.
JERRY: You better decide, sister. You're on deck.
{she begins kissing Jerry}
JERRY: Sheila!
{Soup Nazi pounding on countertop}
JERRY: Uh-oh.
SOUP NAZI: Hey, what is this? You're kissing in my line? Nobody kisses in my line!
SHEILA: I can kiss anywhere I want to.
SOUP NAZI: You just cost yourself a soup!
SHEILA: How dare you? Come on, Jerry, we're leaving.
{Sheila walks out and then back in while Jerry is desiding soup or girl}
SHEILA: Jerry?
{Jerry turns toward her}
JERRY: Do I know you? <<< I love that line
{Sheila looks offended}

*end of scene*