An action or person that embodies excellence, or very good in nature. While being known as swell in the 1980's may have been a condescending or derogatory term, swelladelic is a positive term coined to incite positive feedback.
"That wave was swelladelic" or "She is looking quite swelladelic this evening"
Any substance with Oneirogenic effects; producing twilight sleep, hypnogaugia, lucid dreaming, intense visions, or euphoria during repose, but which have little or no effect on an alert wakeful consciousness.
"That stuff I ordered online didn't do much for me until I fell asleep-- and man was it ever sleepadelic!"
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.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"