The duo was officially formed in 1993 by Erik Gutiérrez a.k.a Erk Aicrag (lyrics and vocals) and Oscar Mayorga a.k.a. Racso Agroyam (Programming), but both cousins had been experimenting with electronic music, mixing Industrial and EBM, since they were fifteen years old. Their music can be described as dark and aggressive electronica or more specifically as aggrotech. Their lyrics are mostly Spanish although some songs are in English. The Spanish word hocico means snout and is a derogatory term that indicates ugliness (e.g., ugly as a dog's snout), and is used in phrases like cállate el pinche hocico, meaning shut your fucking mouth.