Genre of music.
"Psuedo crappy music made by people in adverse weather condtion." The people of a grunge band are required to wear flannel, have long hair, scrappy beards, and the lead singer cannot make sense when he sings. The era of grunge went from 1992-1994. During the era many things from Seattle, the origin of grunge, had started to bloom all over. The era ended when Seattle was not the only city to have a Starbucks ever 1/3 of a mile.
Nirvana is the supreme band of grunge rock.