For any n00bs who may be readin this - slang terms vary on area...
For example: someone above mentioned a spliff as a joint with weed & tobacco mixed... Around my parts, a spliff is just a joint/blunt rolled in a cone shape. So some of these terms may vary depending on where you live...
But here's a couple for the list...
"L" = Blunt. As in: 'Hey guys, wanna twist up a L?'
"Blow"= Smoke. As in: 'Wanna blow some trees?' (Blow in noun form is coke, in verb form it means smoke"
"Poop" = Schwag (or poopy weed). As in: This weed is some poop.
"Vega" = The best cigars to roll blunts in. They come out so perfect
"Goddie, Stuffie" = A cigar that's emptied of tobacco (without cracking the cigar) by rolling it between the palms of your hands. Use something long and thin to get the last bits out of the butt, then procede to stuff the cigar with buds. This works excellent with black-n-milds, Phillies Blunts, and White Owls. It can be done with Dutch Masters, but it's more difficult because the leaf likes to come undone while you're emptying the baccy.
EDIT: I think Indy has a monster list somewhere around here...