ms-13 members  might chop up a guy who they think iss a rival gangbanger, but won't check to make sure he is a rival gangbanger
"stands for mar salvatruchas trece (thirteen in spanish, taken from the southsiders or sur 13) mara salvatruchas means something like gangster salvadoran soldiers
"ms-13 members  might chop up a guy who they think iss a rival gangbanger, but won't check to make sure he is a rival gangbanger" What is the definition of "ms-13"?