The thing that everyone knows about but can not explain. It happened one time, it may never be repeated, can be used to engage in secret conversation about the subject to someone else who knows of its origins.

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)

socool means a smart and cool guy. he is best student in his class and smokes weed once a week