Top Definition
A knobstacle is a person who maliciously obstructs or otherwise prevents you from the reasonable transaction of legitimate business.
"I asked the customer service girl to transfer me to her supervisor, right? Huge mistake! Her supervisor ended up being a ginormous knobstacle who gleefully refused to refund my over-limit charge even though he could see that the merchant had refunded me $29.95 from the accidental overcharge that put me $4.95 over-limit in the first place!"
by Mo Dixley November 12, 2009

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Somebody, friend or otherwise, who is oblivious to the fact they are cock-blocking you.
Dave: "Hey, what's wrong John?"
John: "I'm trying to be cool around Jess but that indie hipster guy from her economics class is a huge knobstacle."
by Dailyfrank March 04, 2014

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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someone who becomes a knob by getting in your way
Naomi's walking to the Cafe, and a student gets in her way. She thinks to herself "What a Knobstacle?"
by naoaro June 02, 2011

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