Also found in: Dictionary, Thesaurus, Financial.
Related to whatsis: thingamajig, thingumabob
whatsisand 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.