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Colored Side walls on Tires.Mustard is defined as the yellow sidewalls, Mayonaise is defined as the white side walls. Together they are refered to as Mustard and Mayonaise, refered to by hip hop artists in Vallejo, California
Yo Dog that Nigga is Rollin on twenty twos wit Mustard and Mayonaise
by Los of Vallejo April 05, 2004
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