doohickeys

/D UW1 IH1 K IY0 Z/
noun
  1. 1

    A thing (used in a vague way to refer to something whose name one cannot recall)

    โ€œWhat does this doohickey do?โ€

Source: https://en.wiktionary.org/wiki/doohickey, https://en.wiktionary.org/wiki/doohickeys