A fork of Rural Dictionary
Bromothymol blue is a chemical that turns green or yellow when exposed to high levels of carbon dioxide. It’s chemical composition is C27H28Br2O5S
“We used BTB in class today to measure the release of CO2 in burning ethanol”
Someone who is The Godfather of big time bitches aka BTBs
Lebron James is The Godfather BTB because of his move to Miami and other bitchassness