Keester Kiss Share definition Flag An imprint left on bedsheets as a result of the failure to sufficiently wipe your ass before sitting on a bed naked. It was evident that Bill forgot to wipe as seen by the keester kiss left on the sheets. Keester Kiss by Tim Boniface March 30, 2005 0 0 Get merch Get the Keester Kiss mug. Buy Now — $32.95 See more merch