Basically, an April Fool's prank. Get an Oreo, take out the white stuff and put white tooth paste (hence the "mint"). Give it to someone and watch their reaction. They should later (in about 30+ minutes) be running to the bathroom with diarrhea.

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)