a person, not necessarily a family member of any kind, who, when things around them are generally well will be ecstatic about any and everything, but similarly will turn dour/morose/angry/violent the moment things go slightly awry.
Dude1: Barry, is such a fucking drunk uncle. I can't stand it when he flips out like that over nothing.
Dude2: Uh... Barry isn't your uncle, and I'm pretty sure he hasn't been drunk the last two times we saw him.
Dude1: ...You're an idiot...
by T-Dubbs7488 October 23, 2007

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Top Definition
The one who chose the bottle's curves over a woman's curves and never reproduced for whatever reason.
The family portrait never included drunk Uncle Fester because he was too drunk to stand for the photo.
by john2 November 16, 2007

The Urban Dictionary Mug

Lotsa space for your liquids.

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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.

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