Meaning of thingamerry in English:

thingamerry

Pronunciation /ˈθɪŋəməri/

noun

(also thingumary)
informal, rare
  • Thingummy.

Origin

Early 19th century; earliest use found in ‘Robert Rabelais’ (fl. 1819). Apparently an extended form of thing or thingum; with the ending compare jigamaree and perhaps also -ery, -ary.