What is the meaning of Grebo?

A greaser or biker; a member of any alternative subculture, as opposed to a chav or townie.

A member of a United Kingdom subculture of the late 1980s and early 1990s, musically affiliated with garage rock and electronica, typically wearing baggy clothes and hair in high ponytails.

A short-lived subgenre of alternative rock music in the late 1980s and early 1990s, with influences from punk rock, electronic dance music, hip-hop, and psychedelia.

grebe

Source: wiktionary.org