thingamajig

and thingy (ˈθɪŋəmədʒɪg and ˈθɪŋi)

n. a gadget for which the proper name has been forgotten or is unknown. Hand me that thingamajig with the copper base, will you?

Name	Pronounced	Usage
Achard	[ə'ʃa:]
Adeane	[ə'di:n]
Nollaig	NAWL-əg	Irish
Vragi	-	Ancient Scandinavian
Uttara	-	Hinduism, Indian, Marathi
Math	-	Welsh Mythology