Top Definition
sopho·mor·on·ic
adj.

sopho·mo·ron
n.

A combination of both sophomoric and moron.

soph·o·mor·ic
adj.
Exhibiting great immaturity and lack of judgment

mo·ron
n.
A stupid person; a dolt.

I prefer this one:
A person of mild mental retardation having a mental age of from 7 to 12 years and generally having communication and social skills enabling some degree of academic or vocational education. The term belongs to a classification system no longer in use and is now considered offensive.

So we gather that a sophomoron would be someone lacking any real intelligence and is very immature. This would be your wide-spread high school jock/prep and many lost college students.
My roomate is a sophomoron.
He is extremely sophomoronic.
by Lee Trout January 13, 2004

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Exhibiting great immaturity and lack of judgment compiled with having a mental age of from 7 to 12 years.
His response to my message board post was the typical sophomoronic drivel we are used to at the Poker Club.
by GridVicious January 14, 2006

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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.

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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