What is "mfzb"

MFZB (abbreviation of Motherfucking Zebrahead, Bitch) is the fourth studio album released by American punk rock band Zebrahead.

The title of the album originally comes from the band's fanclub of the same name. The first 1,000 copies of the CD release of it were made available in four different colors; red, yellow, green and blue, with blue being the official color with later copies.