doojigger
Noun
Meaning
something unspecified whose name is either forgotten or not known
Source: WordNetSynonyms
gizmo
jigger
gimmick
gubbins
gismo
doohickey
widget
doodad
thingamajig
thingummy
thingamabob
whatsis
thingumabob
thingumajig
thingmajig
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Hypernyms
Examples
she eased the ball-shaped doodad back into its socket
there may be some great new gizmo around the corner that you will want to use