Spud-n-bud 

a homemade smoking device; where a potato is converted into a device for smoking natural herb.

We didn't have any glassware, so we carved a spud-n-bud out of a potato.

Dude, that raccoon last was munching after it ate the discarded spud-n-bud.

Spud-n-bud by Sir. Rob September 7, 2010