Top Definition
A 'yo mama' joke in Latin that means Yo mama is so fat, when she is in town, Rome has 8 hills. This is funny because there are 7 hills in Rome.
Roman1: Mater tua lupa est (Your mother is a whore)
Roman2: Mater tua tam obesa est ut cum Romae est, urbs habet octo colles
Roman crowd: Ooooh!
by Lynny64 July 14, 2011

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