It is the name of a breed of dogs of American origin. Literally the Word from the English language can translate boneless bull or bone-breaking bull. It refers to its high bite pressure, it can reach about 250 PSI. It is slightly heavy and robust. Many countries consider this breed dangerous. In the United States it has been prepared for illegal dog fighting. Stage name of a rapper singer, whose real name is Armando Christian Pérez. Nickname of Chilean footballer Gary Medel.
