When the school's band goes to a place, especially one far away, to play in a festival. To get there, they ride on a band bus and while on the bus and the trip, very very many strange/fun/amusing things occur. Non-band geeks usually get very jealous of band geeks when this trip takes place. Everyone wishes that they played in the school band.
Band trip this year was awesome!!!!!! We made those others so jealous
When a school band goes on an overnight trip to some music thing (preferably in Canada where the drinking age is 18). The goal of this trip is to find out what it feels like to be more krunk than you can ever possibly get.
Dude 1: "Dude, I can't wait for the band trip."
Dude 2: "Dude, the band trip is already over, don't you remember anything at all?"