KP Share definition Flag A type of speaking related to retardation words include: 1) chate up = shut up 2) cain't = can't 3) nahger = nigger etc. Kid 1: Man Nick even talks like KP in his sleep! Kid 2: I know that kyle is a silly bitch KP by Hot scolt January 2, 2009 0 0 Get merch Get the KP mug. Buy Now — $32.95 See more merch