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1. a badass who may sometimes act gay and lies about doing drugs and getting girls. Demoz are also extremely strong and enjoy long walks on the beach

2. Someone who is extremely cool and talks the talk but doesnt walk the walk

3. A person who can jerk extremely good!
1. "Tom Cruise is a Demo Boy in mission impossible."

2. "Wanna hang out with the Demo Boyz today?"

"No, they always steal my girls then take them to the


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by demoboy April 04, 2010
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