wibbly worm Share definition Flag A furry, light-up dildo that has eyes.... prefferably in blue, yellow, green, purple or red. Also known as Wilber the Wonderdildo The other night wibbly worm and I had a hott night in.. if you know what I mean. wibbly worm by Jane Austen III August 9, 2009 Get the wibbly worm mug.