(N.) 1. An attempt to explore someone's moral position on marijuana through subtle references to its use
2. Any off handed and/or abstract reference to marijuana
"I met a chick at the bar the other night but wasn't sure if she smoked, so I dropped a couple of subtle reeferences..."
"I think my boss smokes weed. I've been picking up a lot of reeferences from them..."
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.