whatsis

and whatsit and whatzit and whazzit (ˈʍətsɪs and ˈʍətsɪt and ˈʍətsɪt and ˈʍəzɪt)

n. a name for a person or thing whose real name has been forgotten or is being avoided. Put this little whatzit on the top and another on the bottom.

Name	Pronounced	Usage
Florianne	-	French
Yanka	-	Bulgarian
Rainard	-	Ancient Germanic
Rube	ROOB	English
SigrÚN	-	Ancient Scandinavian, Norse Mythology, Icelandic
Gumarich	-	Ancient Germanic