Top Definition
When something is smart and stupid at the same time, as in stupid for the idea, but smart for the outcome (and vice versa).
SMart/StUPID= SMUPID

A lot of things Freeman did in the machinima Freeman's Mind were Smupid.
by andkjagyugfjhbm July 31, 2009

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v. The act of knowing what to do and how to behave, pertaining to education, and choosing not to.
The student acted smupid when he needed to look up the meaning of the word, even though he was on a computer connected to the Internet.
by IslandWoman November 14, 2012

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Someone who has no idea what the hell they're talking about (usually a result of either ignorance or stupidity)
Jim "Hey, PS2 sure is a great console!"
Rob "No it's not, you're smupid
by John B. June 20, 2003

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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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A very smart, stupid person. who can be a genius at one time and an complete idiot the next
My dog is smupid
by Wolfwriter14 December 21, 2016

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Lotsa space for your liquids.

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The Urban Dictionary 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.

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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).

Buy the t-shirt