RichThesaurus
thingamajiggy
vs
whatchamahoozie
thingamajiggy
noun
A thingy; something whose name cannot be recalled.
whatchamahoozie
noun
whatchamacallit
How often have the words
thingamajiggy
and
whatchamahoozie
occurred in a corpus of books?
(source:
Google Ngram Viewer
)