petering

/P IY1 T ER0 IH0 NG/
verb
  1. 1

    In whist, to play a blue peter.

verb
  1. 1

    (most often used in the phrase peter out) To dwindle; to trail off; to diminish to nothing.

Source: https://en.wiktionary.org/wiki/blue%20peter, https://en.wiktionary.org/wiki/peter, https://en.wiktionary.org/wiki/petering