Hypertext Webster Gateway: "thingummy"
From WordNet (r) 1.7 (wn)
thingummy
n : something whose name is either forgotten or not known [syn:
{dohickey}, {dojigger}, {doodad}, {doohickey}, {gimmick},
{hickey}, {gizmo}, {gismo}, {gubbins}, {thingamabob}, {thingumabob},
{thingmabob}, {thingamajig}, {thingumajig}, {thingmajig}]
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