Jasimus Share definition Flag An average black woman who has a purple vagina and turns into a robot at night. Appears in the form of a slutty virgin by day. Jasimus' are rare creatures. "Last night, I thought I was molesting a whore but it was actually a Jasimus!" Jasimus by Chelsimus December 22, 2008 0 0 Get merch Get the Jasimus mug. Buy Now — $32.95 See more merch