The joint you're smoking while your friends are trying to guilt you for partaking in their good weed.
Dust: Hey, I hope you're enjoying that expensive-ass weed I brought along that you've been smoking all day, bro.

Jerry (Wizard): (thinks to self) - Damn, I have been smoking this weed sack all day and haven't even said thanks. Shit. "Damn y'all, why you gotta make this a guilt joint?"
by Beer-Battered January 1, 2009
Get the Guilt Joint mug.