Top Definition
someone who is cruel, evil, pitiless, merciless, and that never ceases to be bad to others. (the jails are full of these people).
Gee my boss at the moment is so relentless, we should put a hit on that puto, hey H Bomba you got his ticket esse, Orale!!
by Jason "Vato Loco" June 26, 2007

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A fruit energy drink, high in caffeine. Add pro-plus and a bit of vodka, you'll be bouncing off walls in no time.
Hey did you just see Jimmy!? He downed a relentless cocktail of pro-plus and caffeine, then he jumped out of the window thinking he could fly!
by Black44 December 29, 2007

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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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Sexually excited. So called because the energy drink Relentless increases your sex drive.
Oh my god. I'm relentless. I need to go abuse myself.
by i-feed-on-your-viscera August 28, 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).

Buy the t-shirt
Sexually excited. So called because the energy drink Relentless makes you hornier.
Omg. I'm relentless. I need to go abuse myself.
by Adrenalectomised(Hello Wolf!!) August 26, 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.

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
An energy drink, mostly drunk by BMX ers in Farborough. Nornally gone on halves, two people buying a four pack paying half each, and a great drink to replace Red Bull
Guy1"Wanna go asda?"
Guy2"Yeah, wanna go halves on a four pack of Relentless?"
by Roman1077 December 13, 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.

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
Sexually aroused, so called because the energy drink Relentless makes you hornier.
Omg, I'm relentless...I need to go abuse myself
by Adrenalectomised (HELLO WOLF!) August 17, 2008

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