n. (rip' el i-fekt') To bring into existence multiple messes in a short period of time. Usually performed by a toddler. Timing is of essence in order to execute properly - as Mom is knee deep in one mess you must quickly make your move somewhere on the other side of house and outdo yourself. Ad nauseum. Be sure to make lots of noise, preferably wild animalistic giggles, so that you cannot hear her screaming for you to stop, or else.