Pronounced: Que-bee ; noun ; slang.

1. Cubic Zirconia gem; a imitation diamond.
2. Someone or something fake or not authentic.
3. Describing someone who is square (cube) or uncool.
1. "Look at this sweet gem I got my girl, she'll never know it's a cubi."
2. Dawg, that fakester's a cubi!"
3. "Check out his gear, what a cubi!"
by Dr. Cubitron June 13, 2006

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Top Definition
Proper noun. Pronounced (Que-bee). Sort of like Rubix Cube but not.

1. A Vocaloid mascot for the Vocaloid Yohioloid whom is destined to become an internet meme, but sadly will never happen for he is not a meme.

Origin: High School of Mutual Memeing on Quotev.
"Cubi was totally an ordinary box thing. But everything changed when he was first accepted into meme school."

"Cubi wants to be the meme sempai, but does he have what it takes?"

"So Cubi went into the girl's bathroom, feeling no guilt at all b/c he's neither a mademoiselle or a dudefella."
by Mastermind Ritsu January 31, 2015

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Short form for calling someone a cunty bitch
You're mom is a cubi.
Shit my teacher is a cubi.
Wow I want to hook up with some cubies.
by Court Leacon May 14, 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.

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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