Gismo [ 'ɡizməu ]
n. something unspecified whose name is either forgotten or not known 同义词：doodaddoohickeydoojiggergimmickgizmogubbinsthingamabobthingumabobthingmabobthingamajigthingumajigthingmajigthingummywhatchamacallitwhatchamacallumwhatsiswidget
a device or control that is very useful for a particular job 同义词：appliancecontraptioncontrivanceconveniencegadgetgizmowidget