thingymajig

not Thing" from adams family though the hands itself could be one, unknown of a real existence or made up is what makes it a thingy and the fact that it may or may not or we may not even know if it can ever jig or have a jig in its moves or possess a jig, if jig were a thing or thingy, we do not know

Get me that silver thingymajig over there on the table for these screwy thingymajigs here on this car that need to be tightened.