adj. Moderately dumbassified.
Real citation: “Over her shoulder, she says 'well, yeah' like we're semi-moronish for even asking. She continues to walk away, leaving us in the hall looking at her.”
(April 24, 2007, http://blog.myspace.com/index.cfm?fuseaction=blog.view&friendID=169846858&blogID=257083093)
Made-up citation: "A full box of rocks is moronic; two or three rocks are semi-moronish, according to neurologists. To estimate your own intelligence, count your rocks."