One of the mysteries of the English language finally explained.
Used to refer to or address a person or thing whose name one has forgotten, does not know, or does not wish to mention.‘one of those thingamajigs for keeping all the fireplace tools together’
Early 19th century: arbitrary extension of earlier thingum (from thing + a meaningless suffix). Thingumabob dates from the mid 18th century.
In this article we explore how to impress employers with a spot-on CV.