Those who are devoted to the style of music known as progressive. These people are so devoted to this style of music they sometimes emblazon their clothing with the emblems of their favorite bands. (Pink Floyd, Dream Theater, Yes, etc)
George is such a prog-head he sewed the Dark Side of the Moon Prism on his converse! and Matt drew the dream theater emblem on his pants!
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.