whatchamacallit

noun

1. （想不起名称时说）叫什么来着
   used when you cannot think of the name of sth
   1. Have you got a whatchamacallit? You know… a screwdriver?
      你有一把…叫什么来着的？你知道的…螺丝刀吗？

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:    doodaddoohickeydoojiggergimmickgizmogismogubbinsthingamabobthingumabobthingmabobthingamajigthingumajigthingmajigthingummywhatchamacallumwhatsiswidget