dry, when in relation to wine , refers to the sweetness, or left over 'residual' sugar that was used for the fermentation process. It's dry when all the sugar was combined with the yeast - or sweet if there was sugar remaining once the process stopped... medium is, well, somewhere in between. kind of like this definition. useful, moderately interesting, but no oxford definition.

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)