Jumper (suomeksi)

hyppääjä (s: someone or something that jumps)
jumpperi (s: short length of electrical conductor / removable connecting pin (electronics) / oikosulkupala / colloquial / woolen sweater or pullover)
oikosulkupala (s: removable connecting pin (electronics))
villapusero (s: woolen sweater or pullover)