v. - to steal, snatch, grab, or otherwise take something into one's possession

Methamphetamine (crank, speed). Describes the gag reflex triggered by the extreme burning sensation of the nasal passages when the drug is snorted, and the very bitter taste as it drains down the back of the throat.

The first retching sound a cat makes when it hacks up a hairball.

The browny black substance found inside a firing tube after a big mix has been smoked through it,It smells terrible and stains lips, clothing and fingers

The slimy substance (usually green) that was dumped on people in earyl Nickelodeon tv shows

A Gack is any item (other than a bottle opener) which is used to open a beer bottle. This applies only to bottles filled with beer. Soda, juice, de-alcoholized beer etc. do not apply. It must also not be a screw-off bottle. Due to the skill involved, a person who is rather adept at using various items to open a beer is referred to as a Gacksmith.

To discharge some kind of fluid from the mouth, either phlegm, mucus or vomit.

noun. - Ritalin, Concerta, Vyvance, Adderall, or any other Psycho-Stimulant ADHD Drug.
verb. - the state of mind when on any psychostimulant or adhd drug; usually one listed above