The fear of falling out of a tree and being impaled by a large boulder but only on a Saturdayafternoon. Pronounced ia-wa-ve-nen-iguanen-phobia, it is a theoretical phobia created by Nanashi Mumei in response to Gary Larson's fake theoretical phobia: Luposlipaphobia.
I fell out of a tree and was impaled by a large boulder last Saturdayafternoon, now I have iawavenengiguanenphobia.