a version of the word gnarly: also a word used in substitute to patronize or insult intelligence of fags who say "gnar: an over exaggerated word to describe the level of "gnarlyness"
DANNY: That car just did a 360,
RICK: Haha, dude gnarshmallow.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.