
1) Contraption 2) Dingus 3) Dohickey 4) Dojigger 5) Doodad 6) Gadget 7) Gimmick 8) Gismo 9) Gizmo 10) Gubbins 11) Item 12) Thing 13) Thingamabob 14) Thingamajig 15) Thingamabob 16) Thingamajig 17) Thingumabob 18) Thingumajig 19) Thingummy 20) Whatsis 21) Whatsit
Found on
https://www.crosswordclues.com/clue/doohickey

1) Dingus 2) Dohickey 3) Dojigger 4) Doodad 5) Gimmick 6) Gismo 7) Gizmo 8) Gubbins 9) Hickey 10) Stuff 11) Sundries 12) Sundry 13) Thingamabob 14) Thingamajig 15) Thingmabob 16) Thingmajig 17) Thingumabob 18) Thingumajig 19) Thingumbob 20) Thingummy 21) Whatchamacallit 22) Whatsis
Found on
https://www.crosswordclues.com/clue/doohickey

- Refers to any number of items that you can't think of the correct name for. Also known as a Doo-dad, Gizmo, Thingamajig, Thingamabob, Thingy, or Whatchamacallit.
Found on
http://www.encyclo.co.uk/local/21026

a gadget; dingus; thingumbob.
Found on
https://www.infoplease.com/dictionary/doohickey
No exact match found.