Top Definition
An insult used to describe someone of little or no importance; someone so lame and useless they're just considered a mere afterthought. Used by one of the characters in GTA V.
"You're a waste of space on this earth!"

"Fuckin' whatever..."

"Idiot! You depressing afterthought! Why oh why weren't you drowned at birth!?"
by lester square October 02, 2013

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An afterthought is something thought of at the last minute. Afterthoughts are common among video games and movies.
Example:

"Did you hear about Halo: Reach?"

"Yeah, it seems like an afterthought"
by Frickin' I don't care June 13, 2009

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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.

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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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rockin the rock bands of red wing is what afterthought does best
by hughbert himself April 10, 2003

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

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