Back in the day, the 1D boys would often ask fans to trend certain phrases and hashtags worldwide on Twitter, and one of those was #Zap. It became such a big deal that Zayn got a tattoo commemorating the fun. But what exactly did it mean? 1D Historian explains... #1d #directioners #fandom #louistomlinson #niallhoran #onedirection #zaynmalik #boyband #harrystyles #liampayne #zap #onedirectionfacts
