Top Definition
a person who fiends drugs and will do anything to get them
wowww, bob just jacked all his moms money and bought coke, what a fiendster!!!!!!
by bombdigitybabe April 14, 2011
1 more definition
Strict left wing opposition of cordial social networking sites like friendster.
Cor blimet, I hear you've joined fiendster, now how true is that hey?
by Hercolena Oliver August 28, 2008

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