Top Definition
A person who is pretty damn awesome, there so cool they can wear a rainbow and be cool hence, rainbow fish.
He's is such a rainbow fish, even though his cloths make him look like a rainbow..." "Damnnnn what a fine Rainbow Fish, she's sucha bitty
by :-))))) tripled chin June 13, 2010

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an emoish girl. The biggest whore ever. Dies her hair a new color every week.
M: Did u see rainbow fish this week?
S: Yea that whore has black hair. Eww and she keeps talking to Freddie.
by bettywhore May 22, 2008

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.

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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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male equivalent of a fruit fly
Person 1: that guy is a pimp, look at all those females with him

Person 2: oh him, naw he's a rainbow fish

Person 1: T_T
by highposition December 26, 2010

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.

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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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When a large woman, preferrably black to be politically correct, has a group of men, each wearing a different colored condom, all pleasing her fish at the same time. Such an act must be done for her to recieve pleasure, as a normal penis would not supply nearly enough meat to fill her fish.
Randy: DAMN that bitch is HUGE

Jake: that's DEFINATELY where i parked my car!

Zach: lets rainbow fish her all night long!

Dan: GENIOUS GENIOUS GENIOUS!
by DsTRO June 13, 2004

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

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