1. A firearm, usually semiautomatic. Also can be a pistol.
2. One of the rappers in the rap duo "Smif-n-Wessun", most famous for the song "Bucktown".
Person 1: Man you better be careful in that neighborhood.
Person 2: Don't worry about me, I'm good as long as I got my smif at my side.
Person 1: Rap today sucks, do you know any good rap artists?
Person 2: Yeah man, check out some stuff from smif n wessun, theyre pretty tight.