\アッカリ~ン/
* Nicopedia: "＼ｱｯｶﾘ～ﾝ／":http://dic.nicovideo.jp/id/4658697 

A sound associated with [[Akaza Akari]] of [[Yuru Yuri]]. It is both her nickname, and more commonly, the sound she makes at [[Yuru Yuri's starting]], and when she turns invisible during the other characters' daydreams.
akkari~n