Seib 

To take advantage of someone, typically when money is involved. The money will only flow in one direction. 'Seibing' often involves cards games like blackjack, blackjack, or blackjack. It can also happen during the art of buying and selling, which Seibs have perfected over the years.

For example, you buy a drumset for $75. You then sell the drumset to your cousin for $100. Congrats, you just Seibed your cousin.

Neeley didn't see that ace up my sleeve during blackjack. I just got 7 blackjacks in a row with it. She got Seibed!

Seib by Clarence Seib October 29, 2019

Seibert 

A person with either a large nose, a bowl cut, or the ability to play the clarinet. Descendant of both the squidward and the shanth

Max looked towards the boy, and said

"God, that kid is SUCH a Seibert!"

Seibert by sluurp October 25, 2009

Droppin' a Seibel 

To fart with either extreme stench (room-clearing) or a fart of epic proportions

Dude i ate too much at Taco Bell earlier - I feel like Droppin' a Seibel...

Droppin' a Seibel by Blonde Haired Midget January 13, 2011

Seibel 

The definition of badassness. One who acomplishes great feats of awesomeness. A complete and utter pimp who gets whatever he wants.

John- dude did you see that guy kill that tiger with his bare hands and then bang that hot chick
Bob- yeah that dude's such a seibel

Seibel by Badass69 January 16, 2009

Seibeling 

The act of fantasizing/masurbating about a sexy Professor and becoming either wet or hard during their class and subsequently going home and masturbating about them.

As I listen to my Professor's voice in class, I am seibeling of him with his hand in my pants.

Seibeling by Hot for my teacher February 17, 2008

seiber 

A really dorky kid who is really smart but girls wanna do him because he's so dorky.

Whay are those chicks touching Seiber?

seiber by J. Flute April 16, 2005

Seibertron 

The #1 source for Tranformers info, pics, and a bunch of other stuff. It is a very kickass TF website that is teh best.

Seibertron.com kicks ass!

Seibertron by Smashmaster00 October 22, 2004