thingummy
(also thingumajig , thingumabob , thingy ) n (infml 口) personor thing whose name one does not know or has forgottenor does not wish to mention 某人, 某物(其名不详或已忘记或不愿提及).
🗣️ 情景例句
Not very good, I'm afraid, but I do play it a lot. Do you play, by any chance?