thingumajig [ 'θiŋəmədʒiɡ ]

• n. something unspecified whose name is either forgotten or not known

  同义词： doodad doohickey doojigger gimmick gizmo gismo gubbins thingamabob thingumabob thingmabob thingamajig thingmajig thingummy whatchamacallit whatchamacallum whatsis widget

以上来源于: WordNet