Definition of thingamajig in English:
thingamajig
(also thingumajig)
noun ˈθɪŋəmədʒɪɡˈθɪŋəməˌdʒɪɡ
informal 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 tools together
Origin
Early 19th century: arbitrary extension of earlier thingum (from thing + a meaningless suffix). Compare with thingamabob.
Definition of thingamajig in US English:
thingamajig
(also thingumajig)
nounˈθɪŋəməˌdʒɪɡˈTHiNGəməˌjiɡ
informal 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 tools together
Origin
Early 19th century: arbitrary extension of earlier thingum (from thing + a meaningless suffix). Compare with thingamabob.