Definition of madrasi:
(adj) :
Of or relating to the city of Chennai in India, formerly known as Madras.
(n) :
(dated) A native or resident of Chennai in India.
(n) :
(by extension) A native of South India; a person of South Indian extraction (exonym; often considered offensive).
(n) :
(chess) A fairy chess rule where a piece that is attacked by a piece of the same type is paralyzed, rendering it unable to move.