Used when one cannot think of or does not wish to use the name of something.
〈非正式〉那个（忘记或故意不提名字）
Example sentencesExamples
But there is nothing more convenient than to ask at Barnitts or Stubbs for the oojamaflip that fits onto the whatsit, because the telepathic staff will lay hands on the precise item immediately.
It's probably one of those subconscious violent desire oojamaflips poking through one of them veneer of respectability thingamabobs again.