1. When a person is quick with their mobile phone camera from their pocket, often shooting people in embarrassing situations.

2. The ability to text while the phone is still in your pocket.
1. "That guy is a the fastest Japanese Gunslinger you'd better watch what you are doing or he'll totally catch you out and put it on the net."

2. "Is that jock itch or are you a Japanese Gunslinger"
by mummazumbe August 23, 2010
Get the Japanese Gunslinger mug.