arpeeism Share definition Flag A word or phrase coined by listeners (RPeeps) at RP (Radio Paradise). "Squiflop" is an arpeeism (definition: It is the sound which the "Killer Breasts From Outer Space" make when bouncing down the street to attack and destroy you.) arpeeism by Pyro April 11, 2005 0 0 Get merch Get the arpeeism mug. Buy Now — $32.95 See more merch