Englishwhatsit
noun informal
thing, so-and-so, whatever it is, whatever it is called;
informal whatnot, what-d'you-call-it, what's-its-name, whatchamacallit, thingummy, thingy, thingamabob, thingamajig, oojamaflip, oojah, gizmo;
British, informal gubbins, doings, doodah, doobry;
North American, informal doodad, doohickey, doojigger, dingus, hootenanny;
Australian, New Zealand, informal thingo.
whatsit Oxford Dictionary of English