Top Definition
A short post on a messege board usually consisting of one word or one smilie (such as "lol", "heh", ":)"). It comes from a member of Bridge Commander Universe called Nebula who used to post nebisms all the time
lol
heh
wow
:)
;)
:P
meh
by DJcube March 27, 2005

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This also includes the text smiley -.-
This is the archetypal nebism and the original, the other above nebisms are those which were the resulting spawn from Nebula's increased nebism activity
The -.- response is a typical response to a post that is veiwed as confusing or irrelevant, since Nebula is incredibley dense and stupid this is an extremly regular occurance
by Glempius March 28, 2005

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

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

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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