A Japanese term with several different meanings. It can be onomatopoeia for the sound of a [[bird]] chirping (ちんちん chin-chin), a Japanese equivalent of the "beg" command for a [[dog]] (チンチン chin-chin), and it can also be used as a euphemism or slang for [[penis|male genitalia]] (ちんちん chin-chin).

This phrase is commonly associated with [[Mystia Lorelei]] from the [[Touhou]] series, because she is a bird youkai.  For tagging purposes, this tag is only to be used when Mystia herself is saying the phrase, or when it's used to refer to her (as in post #510353).
chin-chin