generation joint 

a joint rolled out of the remaining marijuana from old finished joints (roaches)- more potent due to the resination of the marijuana, but the taste suffers as a result

I'm gonna break up these roaches from last week and roll up a generation joint.

generation joint by Chester NoSeeds January 23, 2006

2nd generation joint

A joint rolled from the roaches of previous joints.

"This 2nd generation joint tastes like fucking shit but its all I have so fuck it."

2nd generation joint by ShaneWood January 8, 2012