thingamabob

1. Granted youre just an engineer, but that doesnt mean that someday you might not build a geegaw or thingamabob that may get you a thank you in someone elses Nobel Prize acceptance speech.
   我知道你只是个工程师，但是这并不意味着你不会某天做出一个小把戏或者小玩意儿能让别人在诺贝尔奖的获奖演说里送你一句感谢某人呀。

noun

1. something unspecified whose name is either forgotten or not known
   1. she eased the ball-shaped doodad back into its socket
   2. there may be some great new gizmo around the corner that you will want to use

   Synonym:    doodaddoohickeydoojiggergimmickgizmogismogubbinsthingumabobthingmabobthingamajigthingumajigthingmajigthingummywhatchamacallitwhatchamacallumwhatsiswidget