Top Definition
To lose an erection, ruin a potential sexual opportunity or potentially happy moment.
Guy 1: My girl was about to give me oral by the fire when her roommate came home.
Guy 2: Did she keep going? Did the roommate join in?
Guy 1: NO! She was embarrassed and asked me to leave.
Guy 2: What a boner buster!
by RNPS April 29, 2008

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Literal tense: A person (generally family) that can walk into your house while you masturbate, thus forcing you to put it away. Thus making them a bonerbuster.

Public tense: A person that could be considered a 'party pooper' 'joy kill' or sometimes 'asshole faggoty fucker that doesn't know how to take a joke'
Literal:

Glenn: My mother came back from the store early yesterday and I had to put it away in the middle of jacking off!

Mobius: What a bonerbuster!

Glenn: Word!

--

Public:

Glenn: Dudes! I had so much fun at the Interpol concert last night!

Mobius: Me too man!

Soup: Me three!

^BrAnDx^: I molested a little boy yesterday! That was so fun!

Soup: You're a sick motherfucker, BrandX!

Mobius: Yeah, you ruined my good mood, you bonerbuster.

Glenn: Get the fuck out. Right fucking now.
by karoz0rz June 08, 2005

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
Literal tense: A person (generally family) that can walk into your house while you masturbate, thus forcing you to put it away. Thus making them a bonerbuster.

Public tense: A person that could be considered a 'party pooper' 'joy kill' or sometimes 'asshole faggoty fucker that doesn't know how to take a joke'
Literal:

Glenn: My mother came back from the store early yesterday and I had to put it away in the middle of jacking off!

Mobius: What a bonerbuster!

Glenn: Word!

--

Public:

Glenn: Dudes! I had so much fun at the Interpol concert last night!

Mobius: Me too man!

Soup: Me three!

^BrAnDx^: I molested a little boy yesterday! That was so fun!

Soup: You're a sick motherfucker, BrandX!

Mobius: Yeah, you ruined my good mood, you bonerbuster.

Glenn: Get the fuck out. Right fucking now.
by Janus57 June 06, 2005

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