It's when get in a fight with one of your opps and you shoot them and that's where the smoke part comes in. The gun is smoking and they just got smoked.
Guy 1: Did you hear those gunshots last night?
Guy 2: Yeah, he tried running smoke with some gang members.
A person (who in most cases isn't a martial artist) who makes condescending comments about a martial art but doesn't know enough about that martial art to know how stupid they sound.
"who needs karate when you can throw hands"
"its over when I see red"
"martial arts cant beat a gun"
"anime bullsh*t"
"that's not a martial art, that's jus roughhousing"
reply: don't be a Schrödinger's black belt.