CSB or csb can refer to: California Shuttle Bus a passenger service between the San Francisco Bay Area and the Los Angeles area. Canada Savings Bond Canadian Society for Biomechanics Carshalton Beeches railway station, England; National Rail station code CSB Cathedral School for Boys in San Francisco Cercle Sportif Brugeois an old name of Cercle Brugge Christian Service Brigade, a non-denominational Christian organization for men and boys in the United States and Canada. Chitrapur Saraswat Brahmin Colegio San Benito in Puerto Rico Connecticut School of Broadcasting, an American education institute. U.S. Chemical Safety and Hazard Investigation Board Chen Shuibian, the former president of Taiwan Carlos Salvador Bilardo, football coach from Argentina The Collection of Computer Science Bibliographies De La Salle-College of Saint Benilde, of Manila Confédération Syndicale Burkinabé, the Trade Union Confederation of Burkina Congregation of St. Basil Cockayne syndrome B, a human gene mutations in which are one cause of Cockayne syndrome Kashubian language (ISO 639-2 code) Köppen climate classification for a moderate Mediterranean climate (warm, very dry summers and mild, wet winters) "Cool story, bro" (internet meme) Central School of Ballet "Cool score, bro" (internet meme) For example Rachel said "CSB" then Emily Replied " I know cool score aye"
Or my only other guess would be Corrugated steel building.