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
Bosmat	-	Hebrew
Charity	CHER-i-tee, CHAR-i-tee	English
Ahlberg	['ɔ:lbɜ:g]
Hafza	-	Arabic
Talbot	TAL-baht	English (Rare)
Williams	['wijəmz]