Top Definition
Means "great friend" or "best friend" in Venezuela.
Persona A (a la persona C): Te presento a XXX, mi "costilla".
{Person A (to person C): this is XXX; my "costilla "}

Persona B (XXX): jajaja.
{Person B (XXX): hahaha.}
by Umbra191 June 06, 2011

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