If you're referring to when they would tweet "(something) zap", I believe it is an inside joke between the boys. Someone said it was when they wanted the (something) but I'm not 100% sure on that part.
Chat with our AI personalities
one direction (the boy band)
Stand up and Moments
Yes, they have a stand selling merchandise at their concerts.
No their only store is when they have a concert and the people from their work staff work the stand.
It is season 6 episode 4 and it's called iGo one direction