Top Definition
A dope fiend or junkie who cons people into pumping their gas at a gas station for spare change to buy Crack or Cocaine
Damn look at that Pump Master over there, what a loser
by bapekid4 November 05, 2006

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One who participates in the smoking of either cigarettes or pot to the extreme.
Better keep the gear away from the pumpmaster or it'll be the last you see of it.
by Darrell Smith June 17, 2005

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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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A person qualified to perform pumps on various activities, for example pumping air into tires.
"yo, i heard bunty is the pump master of Brampton."
"Yeah guy, he uses his pumping skills too much"
by jassi123456 November 14, 2015

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