The terrible condition of believing that one is completely infallible. A major symptom is negating arguments by repeating the phrase "You know I'm right, don't argue." People afflicted are often shunned by most of their acquaintances.
SAM: The sky is always green.

Person 1: No it's not.

SAM: You know I'm right, don't argue.

Person 1: You have Samitis.
by Ben4545 August 13, 2006

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Top Definition
The tendency of a person to kill every funny joke said in the presence of that person. Then they will try to laugh about it and pretend they did it on purpose, but they really didnt.

Known Cures:
1. Putting a bullet in their skull
2. Telling them to shut the FUCK up
3. Killing yourself so you dont have to hear their pathetic attempts at being funny
"what did u do last night?"-person
"your mom! hahahahaa"-person afflicted with Samitis
by Cockrates May 25, 2008

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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The terrible condition of believing that one is completely infallible. A major symptom is negating arguments by repeating the phrase "You know I'm right, don't argue." People afflicted are often shunned by most of their acquaintances.
SAM: The sky is always green.

Person 1: No it's not.

SAM: You know I'm right, don't argue.

Person 1: You have Samitis.
by Ben4545 August 13, 2006

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt
A disease, whose symptoms involve breaking things or hurting ones self /others, by means of being over excited, over zealous, or clumsy
Don't let him on the trampoline, he's got Samitis, he'll have someone's eye out!
by SHJ January 21, 2008

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt