Plano Clap 

the Plano Clap is a motion of tapping your fingers on the inside of your arm, inferring the use of heroine. It is a derogatory stereotype commonly used against youth from the North Texas area against residents of Plano. It suggests that all actions from the people in Plano are based souly on their drug use, particularly heroine and implies an undertone of stupidity.

person 1: Did you see Blake at the party? What a fucking idiot. They were all over the place. Obviously on something.

person 2: Oh definiately. That's Plano for ya! Do the plano clap!!

Plano Clap by carnage-sux February 17, 2010

Planeclapper 

An individual so exuberated from social hierarchy that they willingly and excitedly offer applause upon the landing of an airplane flight.

It was when I found myself engulfed in surrounding applause as the wheels touched ground that I suddenly realized I was on a flight full of planeclappers.

Planeclapper by worldofhumiliation December 6, 2018