'doohickey' definitions:

Definition of 'doohickey'

(from WordNet)

noun

Something unspecified whose name is either forgotten or not known; "she eased the ball-shaped doodad back into its socket"; "there may be some great new gizmo around the corner that you will want to use" [syn: doodad, doohickey, doojigger, gimmick, gizmo, gismo, gubbins, thingamabob, thingumabob, thingmabob, thingamajig, thingumajig, thingmajig, thingummy, whatchamacallit, whatchamacallum, whatsis, widget]

Definition of 'doohickey'

From: GCIDE

doohickey \doo"hick*ey\, n. Any object, usually a tool or other device, whose name is forgotten, or not known.
Syn: thingumbob, whatchamacallit, whachamacallit. [PJC]

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