定義 / Definition
[noun]
・used to refer to a person or thing whose name one cannot recall, does not know, or does not wish to specify.
— その他 例文 —
My whatchamacallit is broken – the thing that controls the oven temperature.
私のあれなんだっけ…壊れちゃったよ。あのオーブンの温度をコントロールするやつ