Top Definition
Member of a European "Moped Gang" that is involved in mob like activity. Such as: Drugs, protection, enforcement, extorsion &etc.
That guy with the gang jacketis a Mofabster. Or: This bar is controlled by the Mofabster's. Or: I borrowed the money from the Mofabsters.
by Estaben Reyes January 06, 2006

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