1. A polite way of saying "go fuck yourself", "fuck you", or even just "goodbye". Short form for "light your ass/self on fire".

2. A way of saying "thank you".
EXAMPLE 1
You: Stop being a bitch.
Me: Light it.

EXAMPLE 2
You: Dinner's on me tonight.
Me: No, you paid last time.
You: No, seriously.
Me: Light it.
by LB79 August 30, 2006

The Urban Dictionary Mug

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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
Top Definition
1. A polite way of saying "go fuck yourself", "fuck you", or even just "goodbye". Short form for "light your ass/self on fire".

2. A way of saying "thank you".
EXAMPLE 1
You: Stop being a bitch.
Me: Light it.

EXAMPLE 2
You: Dinner's on me tonight.
Me: No, you paid last time.
You: No, seriously.
Me: Light it.
by LB79 August 31, 2006

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
1. A polite way of saying "go fuck yourself", "fuck you", or even just "goodbye". Short form for "light your ass/self on fire".

2. A way of saying "thank you".
EXAMPLE 1
You: Stop being a bitch.
Me: Light it.

EXAMPLE 2
You: Dinner's on me tonight.
Me: No, you paid last time.
You: No, seriously.
Me: Light it.
by LB79 September 02, 2006

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