hyppykeppi, kengurukeppi
hyppykeppi
A toy, used for hopping up and down on, consisting of a pole with a T-bar handle at one end, and spring-loaded footpads on the other.
(synonym of)
{{quote-text|en|year=1959|publisher=United States. Bureau of Naval Personnel|title=Aviation Storekeeper 3 & 2|page=394