A fork of Rural Dictionary
1 - A really ugly couple who reflect eachothers ugliness, 2 - And ex who is seen with a new squeeze.
1 - ''eww, who are they?'' ''That's the Gruesome Twosome'' ''Oh'' 2 - ''OhMyGod, my ex is over there!'' ''Is that his new girlfriend?'' ''Yup'' ''Gruesome Twosome, much?''