Something you say to show someone they lack presence.
This comes from the anime Yuru Yuri.
Sometimes, when you see Akari, the sound effect "Akarin" is played. Then she disappears leaving behind not much more than a dotted outline.
Person A: *never says a thing, never gets noticed, always left out or forgotten"
Person B: The moment you hear "Akarin", nothing but a dotted outline will remain of them.
We stepped out into the bright moonlight at Asilomar and it seemed like as we walked there was a continuous state of complete conscious awaring taking place, all the way to the brightly illuminated tide pools.
Someone who is very active, wise, unique, and spunky. Can often be rambunctious and quite silly, also may have a temper. Though all and all, a fun person you would want at your party.