Jemc Share definition Flag It is a Slovenian surname. If a boy has this surname he is a beautiful person, is always happy and also has a huge penis. If a girl has this surname she is beautiful and she is a diva. Jemc is my hottest friend. Jemc by Idonotlie December 30, 2018 0 0 Get merch Get the Jemc mug. Buy Now — $32.95 See more merch