Top definition
A joint that is comprised of the roaches of other joints. Makes for superb smokage. The roach that comes from the "roach joint" itself is a "grandfather roach", a bit of weed that has somehow survived two joints. Hence, a "grandfather joint" is in turn a joint rolled, comprised of grandfather roaches, and just a delight to smoke with your buddies.
Stonerman 1: We're fucking out of weed?!?

Stonerman 2: Well we still got those roaches.

Stonerman 1: Well shit...

(10 minutes later)

Stonerman 1: Let's roll a roach joint!
by pureglaucoma March 04, 2011
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug