1 definition by Ramona Saldivar

MS-13 is considered to be the most brutal gang in the U.S. It consists of mostly Central Americans (Salvadorians, Guatemalans, and Hondurans)
MS stands for Mara Salvatrucha, which is a reference to the Salvadorian guerrilla fighters. The 13 refers to an association with La Eme (The Mexican Mafia). With "M" being the 13th letter of the Spanish alphabet.
The gang started in Los Angeles to protect Salvadorian immigrants from Mexicans and African Americans. It has now spread across the U.S.
-Hey, MS-13 tags are showing up everywhere!
-You don't wanna mess with them, you'll get your head chopped off.
by Ramona Saldivar August 30, 2008
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