A pejorative term for non-iPhone users. iPhones use iMessage to
communicate with other iPhones, oftentimes being quicker than sending a regular text message/SMS message since it uses wi-fi or other internet data. Since non-iOS devices such as those by Samsung, Google, HTC, etc,. don't use iMessage, regular text messaging is required to
communicate between an iPhone and non-iPhone.
Greenies often face various forms of
discrimination such as exclusion from group chats, being banned from offering their phone camera to capture a moment, and others assuming them to be of low socio-economic status.