Japiggle Share definition Flag To laugh softly in a nervous, affected, or silly manner like a Japanese school-girl. When Halas said, "Hi" to me at the club, me and my friends japiggled so hard we spilt our cosmos. Japiggle by Simplynate December 31, 2012 0 0 Get merch Get the Japiggle mug. Buy Now — $32.95 See more merch