when your smoking a bowl with no screen and pieces of weed goes into your mouth ....(not a good thing)

Ash that a stoner accidentally sucks from his/her pipe.

The infamous dog biscuts of the 70's Scooby-Doo tv show. Now recognized as weed brownies.

In the pot culture a scooby snack is the ash sucked into one's mouth during the act of smoking a marijuana pipe, especially on the last hit when the bowl is finished

1) Northeastern U.S. slang for Valium (AKA diazepam) tablets and/or Vicodin tablets. Can be heard in various songs, including the Fun Lovin' Criminals song, "Scooby Snacks."
2) Occasionally used to refer to Quaaludes.
3) A hash brownie

a piece of marijuana that is either drawn through a pipe, or a joint. also pertains to people who eat weed and get bits in their teeth.

When smoking weed from a pipe and a piece of the bud comes through the pipe and down your throat/windpipe. Which can cause you to cough and look like an amature smoker.