A vagina that hasn't been bathed properly for a couple of days or the vagina has had multiple penises enter it without a proper soaping. Trouthole is defined by the trout/catfish like reek emanating from the vagina in question.

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)