Deverill Share definition Flag To perform a "deverill" is to take a course of action that is greatly misappropriate to the situation one finds themselves in. Lauren: Dev raped me. Sam: DEVERILL! Deverill by No. 1 Rüdiger May 17, 2010 0 0 Get merch Get the Deverill mug. Buy Now — $32.95 See more merch