Top Definition
Tjonko Dutch spelling: A lame person who does not participate in the smoking of a (marijuana or hashish) joint.
Person1: Hey bro, wanna smoke this J?
Person2: No thanks, man, not tonight, <insert lame excuse>
Person1: Are you totally tjonko boyyyyyyeee?!
by HoNG-LizardWizard June 25, 2012

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