1) Referenced from a Dr. John song, "Decidedly Bonnaroo," supposedly is Cajun for "great time" 2) an amazing music festival in the cow fields of Manchester, Tennessee held in mid-June since 2001. It brings the best jam bands, rock, jazz, blues, reggae, bluegrass, hip hop, and blues together with 90000 music fiends for a beautiful amalgamation of substance abuse, mud, and music.
"Bonnaroo is gonna be tight this year! Did you see the line up? Trey's playing!"