THINGUMAJIG is validvalid

a thingy [n THINGUMAJIGS]

162,084 of 196,601 in NWL2023·also valid in CSW24

a whatsit, also THINGAMY, THINGAMYBOB, THINGAMYJIG, THINGUMABOB, THINGUMBOB, THINGUMMY, THINGUMMYBOB, THINGUMMYJIG [n -S]