LOL! you da man! thanks... you are also correct... I looked it up and although I didn't find difinitive confirmation, "via yahoo search" multiple people have stated it to be a Cheech & Chong skit... good job! :) extra credit if you could find the video online. :)
The orginal was on vinyl LP - no video. I don't know if maybe later someone did one, but I doubt it. All audio is my best guess.
The second link is a sample from the bit, but stops right before the line you are looking for.
http://www.amazon.com/gp/product/B000002KJ8/102-9517551-8036925?v=glance&n=5174
http://www.amazon.com/gp/music/clipserve/B000002KJ8001005/1/ref=mu_sam_ra001_005/102-9517551-8036925
http://play.rhapsody.com/cheechandchong/greatesthit/track-12?didAutoplayBounce=true