If you can't shoot'em choke'em. Firearms are always the best first line of self-defense, but in case you're not carrying, hopefully you know Brazilian Jiu-Jitsu (BJJ). OSU or OSS is a greeting used amongst BJJ practitioners, which dates back to the Samurai. Short for Oshi Shinobu in Japanese, OSU translates to "Endure Under Pressure."

Museum-quality posters with vivid prints made on thick and durable matte paper. A statement in any room, these puppies are just the accent your room or office needs.