log leaver Share definition Flag A person who refuses to or forgets to flush their terds down the toilet after they shit. Works especially well at a friends house. I dont want jenn comming over anymore. She came over and left me a log. Shes a log leaver. log leaver by C.Lone July 1, 2007 0 0 Get merch Get the log leaver mug. Buy Now — $32.95 See more merch