The coolest guy on the whole fucking universe. He is so awesome that Chuck Norris makes Gassan jokes. His swag levels are over 9000! He's pretty much a big deal where ever you go, even if its not on Earth. He has some haters, but they have nothing on him. He makes the Hulk look like a fucking pussy.
by GasmonH August 20, 2012
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Get the Gassar mug.A man who is going out with a lady who is considerably older than he is. So called because he can often be found servicing an old boiler.
That Ashton Kutcher he's a total gasman.
by Iain1977 March 31, 2007
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