When someone says or does something that is most obviously false, the other person must take their hand and slap it. This originates from a basketball terminology, when someone does something wrong/stupid the coach makes them get on the line and run.
Monte: "Hey man whats 2+2"
Jordan: "6"
Monte: "hey man you gotta run that" *slaps hand*
running your middle three fingers against the back of a persons neck when they say something ridiculously stupid, or have done something retarded. - Run That
Slapping your three middle fingers against the back of a persons neck and THEN running them for something EXTREMELY retarded or dumb. - Terrance Run!
P1. "So yeah she's bananas.."
P2. "B-a-n-a-n-a-n-a.. wait, did i mess it up?"
P1. "wow Run That 2 times!"
P1."..sure, lets just get some plates for the pizza.."
P2."Wow! There's sauce baked on to half of them!"
P1."WOW TRIPLE TERRANCE RUN TO DAD FOR NOT RINSING THEM BEFORE PUTTING THEM IN THE DISHWASHER"