thingy
noun /ˈθɪŋi/
  /ˈθɪŋi/
(also thingamabob, thingamajig, thingummy)
 (plural thingies)
 (informal)- used to refer to a person or thing whose name you do not know or have forgotten, or which you do not want to mention
- Look at that woman over there—the one with the straw hat with the pink thingy around it.
 - This new multimedia thingy means you can research things a lot more easily.