Having an excessive case of derpies or herp derp, where the infected replaces common words with herp or derp.
Derpatitis is commonly heard during talking or singing "ahh, herp herp herp herp herp ahh derp" or more commonly sung as "Ah, ba ba ba ba Barbara Ann"
by shazbottkc June 18, 2012

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Top Definition
An unusually incurable disorder in which the infected derp uncontrollably and prevents them from being a functional member of society or something of that nature.
Jeeze, that person can't do anything right they must have derpatitis! -Dr. Adkins.
by The cure. >:D July 04, 2012

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Lotsa space for your liquids.

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Your favorite word on a white mug.

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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.

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The Urban Dictionary T-Shirt

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

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