Thingumabob synonyms, thingumabob antonyms - FreeThesaurus.com
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Synonyms for thingumabob
something unspecified whose name is either forgotten or not known
References in periodicals archive
It means 'Thingumabob
', and was doubtless the answer of a guide who had forgotten the name.
I worked in the general chemist/bath oils/cotton wool type of thingumabob