Haha, great thread... Here is some from back in the day when I was young and cool and actually had a bunch of stoner friends. haha

dilly - banning someone from hanging out.
eg. Did you hear about john? He narked on joe so now he's dilly'd

Schlumpin' - A car with alot of bass
eg. Damn, john just got some twelves and a new amp and now he's way schlumpin.

B.B. - Beater Bug (my friends and I were and still are into VW's)
eg. John just bought this rusted out '62 with a 1200cc motor, a total BB.

Choppin or Yoppin - Referrs to oral sex
eg. Damn... John brought some girls over, total sluts, they were choppin everyone up.

Siderunner - Joint that burns down one side
no need for an example but I like canoeing better.

Bic it - Turning a badly rolled joint into a bowl.
eg. Man that joint sucks so let's bic it.

Bible study - Low key way to call a smoking session
This one came from a friend of mine who rolled a J with a page of the bible when we were caught without papers or pipe in a hotel room.
eg. Dude... john just scored a sack, let's have a bible study at his house.

Spliff or Coner - a cone shaped joint rolled with the "L" shaped paper set up described in a previous post. No example necessary

Frying balls - trippin really hard on acid or shrooms.
Dude, john just ate a 5 strip, that fool's frying fuckin balls.

I could go on for days but I won't.