Jelfish Share definition Flag Jelfish-When a girl is acting jealous and selfish at the same time. When your girl is actin a fool because you want to kick it with your homies without her, shes acting jealous and being selfish. JELFISH! Jelfish by Garbizo December 29, 2008 0 0 Get merch Get the Jelfish mug. Buy Now — $32.95 See more merch