Band Camp Residue can really only be know to those in a marching band. Band Camp Residue may consist of the following: sweat,sunblock,bug spray,grass,dirt,other's residue,spit(for those next to someone who can't figure out when/how to empty their spit valves),and things invisible to the untrained eye: fear of failure,frustration and desperation. Residue gradually builds up during the day and the physical effects can be washed away with soap and water. As for the psychological effects,however,the only cure is more practice and/or more Cowbell.
Jenna: I feel gross.
Me: It's Band Camp Residue.