An alternate expression for cannabis, derived from gubbins. Often used when secrecy is required, eg. when discussing cannabis over the phone and parental units are near, although it has also evolved into becoming part of general usage.
1. tumbleweed, pass the gub gub over here man so I can skin up.
2. (over phone) yo, you up for getting some gub gub tonight? - to the ensuing confusion of parents or anyone else who happens to be listening.
3. farmer ya cunt. gimmie the gubbedy gub stick.